379379980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{38167}}^1$

素因数の和:38254

約数の個数: 48

約数和(自身を含む): 923360256

約数和(自身を除く): 543980276

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, 38167, 76334, 152668, 190835, 267169, 381670, 534338, 763340, 1068676, 1335845, 2671690, 2709857, 5343380, 5419714, 10839428, 13549285, 18968999, 27098570, 37937998, 54197140, 75875996, 94844995, 189689990, 379379980]

約数ペア:

[(1, 379379980), (2, 189689990), (4, 94844995), (5, 75875996), (7, 54197140), (10, 37937998), (14, 27098570), (20, 18968999), (28, 13549285), (35, 10839428), (70, 5419714), (71, 5343380), (140, 2709857), (142, 2671690), (284, 1335845), (355, 1068676), (497, 763340), (710, 534338), (994, 381670), (1420, 267169), (1988, 190835), (2485, 152668), (4970, 76334), (9940, 38167)]