256612590

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2521}}^1$

素因数の和:2579

約数の個数: 128

約数和(自身を含む): 762652800

約数和(自身を除く): 506040210

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 29, 30, 39, 45, 54, 58, 65, 78, 87, 90, 117, 130, 135, 145, 174, 195, 234, 261, 270, 290, 351, 377, 390, 435, 522, 585, 702, 754, 783, 870, 1131, 1170, 1305, 1566, 1755, 1885, 2262, 2521, 2610, 3393, 3510, 3770, 3915, 5042, 5655, 6786, 7563, 7830, 10179, 11310, 12605, 15126, 16965, 20358, 22689, 25210, 32773, 33930, 37815, 45378, 50895, 65546, 68067, 73109, 75630, 98319, 101790, 113445, 136134, 146218, 163865, 196638, 219327, 226890, 294957, 327730, 340335, 365545, 438654, 491595, 589914, 657981, 680670, 731090, 884871, 950417, 983190, 1096635, 1315962, 1474785, 1769742, 1900834, 1973943, 2193270, 2851251, 2949570, 3289905, 3947886, 4424355, 4752085, 5702502, 6579810, 8553753, 8848710, 9504170, 9869715, 14256255, 17107506, 19739430, 25661259, 28512510, 42768765, 51322518, 85537530, 128306295, 256612590]

約数ペア:

[(1, 256612590), (2, 128306295), (3, 85537530), (5, 51322518), (6, 42768765), (9, 28512510), (10, 25661259), (13, 19739430), (15, 17107506), (18, 14256255), (26, 9869715), (27, 9504170), (29, 8848710), (30, 8553753), (39, 6579810), (45, 5702502), (54, 4752085), (58, 4424355), (65, 3947886), (78, 3289905), (87, 2949570), (90, 2851251), (117, 2193270), (130, 1973943), (135, 1900834), (145, 1769742), (174, 1474785), (195, 1315962), (234, 1096635), (261, 983190), (270, 950417), (290, 884871), (351, 731090), (377, 680670), (390, 657981), (435, 589914), (522, 491595), (585, 438654), (702, 365545), (754, 340335), (783, 327730), (870, 294957), (1131, 226890), (1170, 219327), (1305, 196638), (1566, 163865), (1755, 146218), (1885, 136134), (2262, 113445), (2521, 101790), (2610, 98319), (3393, 75630), (3510, 73109), (3770, 68067), (3915, 65546), (5042, 50895), (5655, 45378), (6786, 37815), (7563, 33930), (7830, 32773), (10179, 25210), (11310, 22689), (12605, 20358), (15126, 16965)]