260798560

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{709}}^1$

素因数の和:765

約数の個数: 144

約数和(自身を含む): 713890800

約数和(自身を除く): 453092240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 76, 80, 88, 95, 110, 121, 152, 160, 176, 190, 209, 220, 242, 304, 352, 380, 418, 440, 484, 605, 608, 709, 760, 836, 880, 968, 1045, 1210, 1418, 1520, 1672, 1760, 1936, 2090, 2299, 2420, 2836, 3040, 3344, 3545, 3872, 4180, 4598, 4840, 5672, 6688, 7090, 7799, 8360, 9196, 9680, 11344, 11495, 13471, 14180, 15598, 16720, 18392, 19360, 22688, 22990, 26942, 28360, 31196, 33440, 36784, 38995, 45980, 53884, 56720, 62392, 67355, 73568, 77990, 85789, 91960, 107768, 113440, 124784, 134710, 148181, 155980, 171578, 183920, 215536, 249568, 269420, 296362, 311960, 343156, 367840, 428945, 431072, 538840, 592724, 623920, 686312, 740905, 857890, 1077680, 1185448, 1247840, 1372624, 1481810, 1629991, 1715780, 2155360, 2370896, 2745248, 2963620, 3259982, 3431560, 4741792, 5927240, 6519964, 6863120, 8149955, 11854480, 13039928, 13726240, 16299910, 23708960, 26079856, 32599820, 52159712, 65199640, 130399280, 260798560]

約数ペア:

[(1, 260798560), (2, 130399280), (4, 65199640), (5, 52159712), (8, 32599820), (10, 26079856), (11, 23708960), (16, 16299910), (19, 13726240), (20, 13039928), (22, 11854480), (32, 8149955), (38, 6863120), (40, 6519964), (44, 5927240), (55, 4741792), (76, 3431560), (80, 3259982), (88, 2963620), (95, 2745248), (110, 2370896), (121, 2155360), (152, 1715780), (160, 1629991), (176, 1481810), (190, 1372624), (209, 1247840), (220, 1185448), (242, 1077680), (304, 857890), (352, 740905), (380, 686312), (418, 623920), (440, 592724), (484, 538840), (605, 431072), (608, 428945), (709, 367840), (760, 343156), (836, 311960), (880, 296362), (968, 269420), (1045, 249568), (1210, 215536), (1418, 183920), (1520, 171578), (1672, 155980), (1760, 148181), (1936, 134710), (2090, 124784), (2299, 113440), (2420, 107768), (2836, 91960), (3040, 85789), (3344, 77990), (3545, 73568), (3872, 67355), (4180, 62392), (4598, 56720), (4840, 53884), (5672, 45980), (6688, 38995), (7090, 36784), (7799, 33440), (8360, 31196), (9196, 28360), (9680, 26942), (11344, 22990), (11495, 22688), (13471, 19360), (14180, 18392), (15598, 16720)]