2558920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:87

約数の個数: 128

約数和(自身を含む): 7660800

約数和(自身を除く): 5101880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 35, 37, 38, 40, 52, 56, 65, 70, 74, 76, 91, 95, 104, 130, 133, 140, 148, 152, 182, 185, 190, 247, 259, 260, 266, 280, 296, 364, 370, 380, 455, 481, 494, 518, 520, 532, 665, 703, 728, 740, 760, 910, 962, 988, 1036, 1064, 1235, 1295, 1330, 1406, 1480, 1729, 1820, 1924, 1976, 2072, 2405, 2470, 2590, 2660, 2812, 3367, 3458, 3515, 3640, 3848, 4810, 4921, 4940, 5180, 5320, 5624, 6734, 6916, 7030, 8645, 9139, 9620, 9842, 9880, 10360, 13468, 13832, 14060, 16835, 17290, 18278, 19240, 19684, 24605, 26936, 28120, 33670, 34580, 36556, 39368, 45695, 49210, 63973, 67340, 69160, 73112, 91390, 98420, 127946, 134680, 182780, 196840, 255892, 319865, 365560, 511784, 639730, 1279460, 2558920]

約数ペア:

[(1, 2558920), (2, 1279460), (4, 639730), (5, 511784), (7, 365560), (8, 319865), (10, 255892), (13, 196840), (14, 182780), (19, 134680), (20, 127946), (26, 98420), (28, 91390), (35, 73112), (37, 69160), (38, 67340), (40, 63973), (52, 49210), (56, 45695), (65, 39368), (70, 36556), (74, 34580), (76, 33670), (91, 28120), (95, 26936), (104, 24605), (130, 19684), (133, 19240), (140, 18278), (148, 17290), (152, 16835), (182, 14060), (185, 13832), (190, 13468), (247, 10360), (259, 9880), (260, 9842), (266, 9620), (280, 9139), (296, 8645), (364, 7030), (370, 6916), (380, 6734), (455, 5624), (481, 5320), (494, 5180), (518, 4940), (520, 4921), (532, 4810), (665, 3848), (703, 3640), (728, 3515), (740, 3458), (760, 3367), (910, 2812), (962, 2660), (988, 2590), (1036, 2470), (1064, 2405), (1235, 2072), (1295, 1976), (1330, 1924), (1406, 1820), (1480, 1729)]