251217720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{617}}^1$

素因数の和:679

約数の個数: 256

約数和(自身を含む): 934416000

約数和(自身を除く): 683198280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 29, 30, 36, 39, 40, 45, 52, 54, 58, 60, 65, 72, 78, 87, 90, 104, 108, 116, 117, 120, 130, 135, 145, 156, 174, 180, 195, 216, 232, 234, 260, 261, 270, 290, 312, 348, 351, 360, 377, 390, 435, 468, 520, 522, 540, 580, 585, 617, 696, 702, 754, 780, 783, 870, 936, 1044, 1080, 1131, 1160, 1170, 1234, 1305, 1404, 1508, 1560, 1566, 1740, 1755, 1851, 1885, 2088, 2262, 2340, 2468, 2610, 2808, 3016, 3085, 3132, 3393, 3480, 3510, 3702, 3770, 3915, 4524, 4680, 4936, 5220, 5553, 5655, 6170, 6264, 6786, 7020, 7404, 7540, 7830, 8021, 9048, 9255, 10179, 10440, 11106, 11310, 12340, 13572, 14040, 14808, 15080, 15660, 16042, 16659, 16965, 17893, 18510, 20358, 22212, 22620, 24063, 24680, 27144, 27765, 31320, 32084, 33318, 33930, 35786, 37020, 40105, 40716, 44424, 45240, 48126, 50895, 53679, 55530, 64168, 66636, 67860, 71572, 72189, 74040, 80210, 81432, 83295, 89465, 96252, 101790, 107358, 111060, 120315, 133272, 135720, 143144, 144378, 160420, 161037, 166590, 178930, 192504, 203580, 214716, 216567, 222120, 232609, 240630, 268395, 288756, 320840, 322074, 333180, 357860, 360945, 407160, 429432, 433134, 465218, 481260, 483111, 536790, 577512, 644148, 666360, 697827, 715720, 721890, 805185, 866268, 930436, 962520, 966222, 1073580, 1082835, 1163045, 1288296, 1395654, 1443780, 1610370, 1732536, 1860872, 1932444, 2093481, 2147160, 2165670, 2326090, 2415555, 2791308, 2887560, 3220740, 3489135, 3864888, 4186962, 4331340, 4652180, 4831110, 5582616, 6280443, 6441480, 6978270, 8373924, 8662680, 9304360, 9662220, 10467405, 12560886, 13956540, 16747848, 19324440, 20934810, 25121772, 27913080, 31402215, 41869620, 50243544, 62804430, 83739240, 125608860, 251217720]

約数ペア:

[(1, 251217720), (2, 125608860), (3, 83739240), (4, 62804430), (5, 50243544), (6, 41869620), (8, 31402215), (9, 27913080), (10, 25121772), (12, 20934810), (13, 19324440), (15, 16747848), (18, 13956540), (20, 12560886), (24, 10467405), (26, 9662220), (27, 9304360), (29, 8662680), (30, 8373924), (36, 6978270), (39, 6441480), (40, 6280443), (45, 5582616), (52, 4831110), (54, 4652180), (58, 4331340), (60, 4186962), (65, 3864888), (72, 3489135), (78, 3220740), (87, 2887560), (90, 2791308), (104, 2415555), (108, 2326090), (116, 2165670), (117, 2147160), (120, 2093481), (130, 1932444), (135, 1860872), (145, 1732536), (156, 1610370), (174, 1443780), (180, 1395654), (195, 1288296), (216, 1163045), (232, 1082835), (234, 1073580), (260, 966222), (261, 962520), (270, 930436), (290, 866268), (312, 805185), (348, 721890), (351, 715720), (360, 697827), (377, 666360), (390, 644148), (435, 577512), (468, 536790), (520, 483111), (522, 481260), (540, 465218), (580, 433134), (585, 429432), (617, 407160), (696, 360945), (702, 357860), (754, 333180), (780, 322074), (783, 320840), (870, 288756), (936, 268395), (1044, 240630), (1080, 232609), (1131, 222120), (1160, 216567), (1170, 214716), (1234, 203580), (1305, 192504), (1404, 178930), (1508, 166590), (1560, 161037), (1566, 160420), (1740, 144378), (1755, 143144), (1851, 135720), (1885, 133272), (2088, 120315), (2262, 111060), (2340, 107358), (2468, 101790), (2610, 96252), (2808, 89465), (3016, 83295), (3085, 81432), (3132, 80210), (3393, 74040), (3480, 72189), (3510, 71572), (3702, 67860), (3770, 66636), (3915, 64168), (4524, 55530), (4680, 53679), (4936, 50895), (5220, 48126), (5553, 45240), (5655, 44424), (6170, 40716), (6264, 40105), (6786, 37020), (7020, 35786), (7404, 33930), (7540, 33318), (7830, 32084), (8021, 31320), (9048, 27765), (9255, 27144), (10179, 24680), (10440, 24063), (11106, 22620), (11310, 22212), (12340, 20358), (13572, 18510), (14040, 17893), (14808, 16965), (15080, 16659), (15660, 16042)]