261403440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{4049}}^1$

素因数の和:4334

約数の個数: 80

約数和(自身を含む): 813564000

約数和(自身を除く): 552160560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 269, 538, 807, 1076, 1345, 1614, 2152, 2690, 3228, 4035, 4049, 4304, 5380, 6456, 8070, 8098, 10760, 12147, 12912, 16140, 16196, 20245, 21520, 24294, 32280, 32392, 40490, 48588, 60735, 64560, 64784, 80980, 97176, 121470, 161960, 194352, 242940, 323920, 485880, 971760, 1089181, 2178362, 3267543, 4356724, 5445905, 6535086, 8713448, 10891810, 13070172, 16337715, 17426896, 21783620, 26140344, 32675430, 43567240, 52280688, 65350860, 87134480, 130701720, 261403440]

約数ペア:

[(1, 261403440), (2, 130701720), (3, 87134480), (4, 65350860), (5, 52280688), (6, 43567240), (8, 32675430), (10, 26140344), (12, 21783620), (15, 17426896), (16, 16337715), (20, 13070172), (24, 10891810), (30, 8713448), (40, 6535086), (48, 5445905), (60, 4356724), (80, 3267543), (120, 2178362), (240, 1089181), (269, 971760), (538, 485880), (807, 323920), (1076, 242940), (1345, 194352), (1614, 161960), (2152, 121470), (2690, 97176), (3228, 80980), (4035, 64784), (4049, 64560), (4304, 60735), (5380, 48588), (6456, 40490), (8070, 32392), (8098, 32280), (10760, 24294), (12147, 21520), (12912, 20245), (16140, 16196)]