272989640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1453}}^1$

素因数の和:1543

約数の個数: 128

約数和(自身を含む): 778878720

約数和(自身を除く): 505889080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 61, 70, 77, 88, 110, 122, 140, 154, 220, 244, 280, 305, 308, 385, 427, 440, 488, 610, 616, 671, 770, 854, 1220, 1342, 1453, 1540, 1708, 2135, 2440, 2684, 2906, 3080, 3355, 3416, 4270, 4697, 5368, 5812, 6710, 7265, 8540, 9394, 10171, 11624, 13420, 14530, 15983, 17080, 18788, 20342, 23485, 26840, 29060, 31966, 37576, 40684, 46970, 50855, 58120, 63932, 79915, 81368, 88633, 93940, 101710, 111881, 127864, 159830, 177266, 187880, 203420, 223762, 319660, 354532, 406840, 443165, 447524, 559405, 620431, 639320, 709064, 886330, 895048, 974963, 1118810, 1240862, 1772660, 1949926, 2237620, 2481724, 3102155, 3545320, 3899852, 4475240, 4874815, 4963448, 6204310, 6824741, 7799704, 9749630, 12408620, 13649482, 19499260, 24817240, 27298964, 34123705, 38998520, 54597928, 68247410, 136494820, 272989640]

約数ペア:

[(1, 272989640), (2, 136494820), (4, 68247410), (5, 54597928), (7, 38998520), (8, 34123705), (10, 27298964), (11, 24817240), (14, 19499260), (20, 13649482), (22, 12408620), (28, 9749630), (35, 7799704), (40, 6824741), (44, 6204310), (55, 4963448), (56, 4874815), (61, 4475240), (70, 3899852), (77, 3545320), (88, 3102155), (110, 2481724), (122, 2237620), (140, 1949926), (154, 1772660), (220, 1240862), (244, 1118810), (280, 974963), (305, 895048), (308, 886330), (385, 709064), (427, 639320), (440, 620431), (488, 559405), (610, 447524), (616, 443165), (671, 406840), (770, 354532), (854, 319660), (1220, 223762), (1342, 203420), (1453, 187880), (1540, 177266), (1708, 159830), (2135, 127864), (2440, 111881), (2684, 101710), (2906, 93940), (3080, 88633), (3355, 81368), (3416, 79915), (4270, 63932), (4697, 58120), (5368, 50855), (5812, 46970), (6710, 40684), (7265, 37576), (8540, 31966), (9394, 29060), (10171, 26840), (11624, 23485), (13420, 20342), (14530, 18788), (15983, 17080)]