21579480

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:115

約数の個数: 256

約数和(自身を含む): 81648000

約数和(自身を除く): 60068520

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, 53, 54, 58, 60, 65, 72, 78, 87, 90, 104, 106, 108, 116, 117, 120, 130, 135, 145, 156, 159, 174, 180, 195, 212, 216, 232, 234, 260, 261, 265, 270, 290, 312, 318, 348, 351, 360, 377, 390, 424, 435, 468, 477, 520, 522, 530, 540, 580, 585, 636, 689, 696, 702, 754, 780, 783, 795, 870, 936, 954, 1044, 1060, 1080, 1131, 1160, 1170, 1272, 1305, 1378, 1404, 1431, 1508, 1537, 1560, 1566, 1590, 1740, 1755, 1885, 1908, 2067, 2088, 2120, 2262, 2340, 2385, 2610, 2756, 2808, 2862, 3016, 3074, 3132, 3180, 3393, 3445, 3480, 3510, 3770, 3816, 3915, 4134, 4524, 4611, 4680, 4770, 5220, 5512, 5655, 5724, 6148, 6201, 6264, 6360, 6786, 6890, 7020, 7155, 7540, 7685, 7830, 8268, 9048, 9222, 9540, 10179, 10335, 10440, 11310, 11448, 12296, 12402, 13572, 13780, 13833, 14040, 14310, 15080, 15370, 15660, 16536, 16965, 18444, 18603, 19080, 19981, 20358, 20670, 22620, 23055, 24804, 27144, 27560, 27666, 28620, 30740, 31005, 31320, 33930, 36888, 37206, 39962, 40716, 41340, 41499, 45240, 46110, 49608, 50895, 55332, 57240, 59943, 61480, 62010, 67860, 69165, 74412, 79924, 81432, 82680, 82998, 92220, 93015, 99905, 101790, 110664, 119886, 124020, 135720, 138330, 148824, 159848, 165996, 179829, 184440, 186030, 199810, 203580, 207495, 239772, 248040, 276660, 299715, 331992, 359658, 372060, 399620, 407160, 414990, 479544, 539487, 553320, 599430, 719316, 744120, 799240, 829980, 899145, 1078974, 1198860, 1438632, 1659960, 1798290, 2157948, 2397720, 2697435, 3596580, 4315896, 5394870, 7193160, 10789740, 21579480]

約数ペア:

[(1, 21579480), (2, 10789740), (3, 7193160), (4, 5394870), (5, 4315896), (6, 3596580), (8, 2697435), (9, 2397720), (10, 2157948), (12, 1798290), (13, 1659960), (15, 1438632), (18, 1198860), (20, 1078974), (24, 899145), (26, 829980), (27, 799240), (29, 744120), (30, 719316), (36, 599430), (39, 553320), (40, 539487), (45, 479544), (52, 414990), (53, 407160), (54, 399620), (58, 372060), (60, 359658), (65, 331992), (72, 299715), (78, 276660), (87, 248040), (90, 239772), (104, 207495), (106, 203580), (108, 199810), (116, 186030), (117, 184440), (120, 179829), (130, 165996), (135, 159848), (145, 148824), (156, 138330), (159, 135720), (174, 124020), (180, 119886), (195, 110664), (212, 101790), (216, 99905), (232, 93015), (234, 92220), (260, 82998), (261, 82680), (265, 81432), (270, 79924), (290, 74412), (312, 69165), (318, 67860), (348, 62010), (351, 61480), (360, 59943), (377, 57240), (390, 55332), (424, 50895), (435, 49608), (468, 46110), (477, 45240), (520, 41499), (522, 41340), (530, 40716), (540, 39962), (580, 37206), (585, 36888), (636, 33930), (689, 31320), (696, 31005), (702, 30740), (754, 28620), (780, 27666), (783, 27560), (795, 27144), (870, 24804), (936, 23055), (954, 22620), (1044, 20670), (1060, 20358), (1080, 19981), (1131, 19080), (1160, 18603), (1170, 18444), (1272, 16965), (1305, 16536), (1378, 15660), (1404, 15370), (1431, 15080), (1508, 14310), (1537, 14040), (1560, 13833), (1566, 13780), (1590, 13572), (1740, 12402), (1755, 12296), (1885, 11448), (1908, 11310), (2067, 10440), (2088, 10335), (2120, 10179), (2262, 9540), (2340, 9222), (2385, 9048), (2610, 8268), (2756, 7830), (2808, 7685), (2862, 7540), (3016, 7155), (3074, 7020), (3132, 6890), (3180, 6786), (3393, 6360), (3445, 6264), (3480, 6201), (3510, 6148), (3770, 5724), (3816, 5655), (3915, 5512), (4134, 5220), (4524, 4770), (4611, 4680)]