263775590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:178

約数の個数: 128

約数和(自身を含む): 569963520

約数和(自身を除く): 306187930

約数列:

[1, 2, 5, 10, 13, 26, 29, 31, 37, 58, 61, 62, 65, 74, 122, 130, 145, 155, 185, 290, 305, 310, 370, 377, 403, 481, 610, 754, 793, 806, 899, 962, 1073, 1147, 1586, 1769, 1798, 1885, 1891, 2015, 2146, 2257, 2294, 2405, 3538, 3770, 3782, 3965, 4030, 4495, 4514, 4810, 5365, 5735, 7930, 8845, 8990, 9455, 10730, 11285, 11470, 11687, 13949, 14911, 17690, 18910, 22570, 22997, 23374, 24583, 27898, 29341, 29822, 33263, 45994, 49166, 54839, 58435, 58682, 65453, 66526, 69745, 69967, 74555, 109678, 114985, 116870, 122915, 130906, 139490, 139934, 146705, 149110, 166315, 229970, 245830, 274195, 293410, 327265, 332630, 349835, 432419, 548390, 654530, 699670, 712907, 850889, 864838, 909571, 1425814, 1701778, 1819142, 2029043, 2162095, 3564535, 4058086, 4254445, 4324190, 4547855, 7129070, 8508890, 9095710, 10145215, 20290430, 26377559, 52755118, 131887795, 263775590]

約数ペア:

[(1, 263775590), (2, 131887795), (5, 52755118), (10, 26377559), (13, 20290430), (26, 10145215), (29, 9095710), (31, 8508890), (37, 7129070), (58, 4547855), (61, 4324190), (62, 4254445), (65, 4058086), (74, 3564535), (122, 2162095), (130, 2029043), (145, 1819142), (155, 1701778), (185, 1425814), (290, 909571), (305, 864838), (310, 850889), (370, 712907), (377, 699670), (403, 654530), (481, 548390), (610, 432419), (754, 349835), (793, 332630), (806, 327265), (899, 293410), (962, 274195), (1073, 245830), (1147, 229970), (1586, 166315), (1769, 149110), (1798, 146705), (1885, 139934), (1891, 139490), (2015, 130906), (2146, 122915), (2257, 116870), (2294, 114985), (2405, 109678), (3538, 74555), (3770, 69967), (3782, 69745), (3965, 66526), (4030, 65453), (4495, 58682), (4514, 58435), (4810, 54839), (5365, 49166), (5735, 45994), (7930, 33263), (8845, 29822), (8990, 29341), (9455, 27898), (10730, 24583), (11285, 23374), (11470, 22997), (11687, 22570), (13949, 18910), (14911, 17690)]