147777980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{14867}}^1$

素因数の和:14954

約数の個数: 48

約数和(自身を含む): 359686656

約数和(自身を除く): 211908676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 14867, 29734, 59468, 74335, 104069, 148670, 208138, 297340, 416276, 520345, 1040690, 1055557, 2081380, 2111114, 4222228, 5277785, 7388899, 10555570, 14777798, 21111140, 29555596, 36944495, 73888990, 147777980]

約数ペア:

[(1, 147777980), (2, 73888990), (4, 36944495), (5, 29555596), (7, 21111140), (10, 14777798), (14, 10555570), (20, 7388899), (28, 5277785), (35, 4222228), (70, 2111114), (71, 2081380), (140, 1055557), (142, 1040690), (284, 520345), (355, 416276), (497, 297340), (710, 208138), (994, 148670), (1420, 104069), (1988, 74335), (2485, 59468), (4970, 29734), (9940, 14867)]