87872720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4447}}^1$

素因数の和:4492

約数の個数: 80

約数和(自身を含む): 231651840

約数和(自身を除く): 143779120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3952, 4447, 4940, 8894, 9880, 17788, 19760, 22235, 35576, 44470, 57811, 71152, 84493, 88940, 115622, 168986, 177880, 231244, 289055, 337972, 355760, 422465, 462488, 578110, 675944, 844930, 924976, 1098409, 1156220, 1351888, 1689860, 2196818, 2312440, 3379720, 4393636, 4624880, 5492045, 6759440, 8787272, 10984090, 17574544, 21968180, 43936360, 87872720]

約数ペア:

[(1, 87872720), (2, 43936360), (4, 21968180), (5, 17574544), (8, 10984090), (10, 8787272), (13, 6759440), (16, 5492045), (19, 4624880), (20, 4393636), (26, 3379720), (38, 2312440), (40, 2196818), (52, 1689860), (65, 1351888), (76, 1156220), (80, 1098409), (95, 924976), (104, 844930), (130, 675944), (152, 578110), (190, 462488), (208, 422465), (247, 355760), (260, 337972), (304, 289055), (380, 231244), (494, 177880), (520, 168986), (760, 115622), (988, 88940), (1040, 84493), (1235, 71152), (1520, 57811), (1976, 44470), (2470, 35576), (3952, 22235), (4447, 19760), (4940, 17788), (8894, 9880)]