71928376

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:536

約数の個数: 64

約数和(自身を含む): 154980000

約数和(自身を除く): 83051624

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 89, 104, 152, 178, 247, 356, 409, 494, 712, 818, 988, 1157, 1636, 1691, 1976, 2314, 3272, 3382, 4628, 5317, 6764, 7771, 9256, 10634, 13528, 15542, 21268, 21983, 31084, 36401, 42536, 43966, 62168, 72802, 87932, 101023, 145604, 175864, 202046, 291208, 404092, 473213, 691619, 808184, 946426, 1383238, 1892852, 2766476, 3785704, 5532952, 8991047, 17982094, 35964188, 71928376]

約数ペア:

[(1, 71928376), (2, 35964188), (4, 17982094), (8, 8991047), (13, 5532952), (19, 3785704), (26, 2766476), (38, 1892852), (52, 1383238), (76, 946426), (89, 808184), (104, 691619), (152, 473213), (178, 404092), (247, 291208), (356, 202046), (409, 175864), (494, 145604), (712, 101023), (818, 87932), (988, 72802), (1157, 62168), (1636, 43966), (1691, 42536), (1976, 36401), (2314, 31084), (3272, 21983), (3382, 21268), (4628, 15542), (5317, 13528), (6764, 10634), (7771, 9256)]