198739120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{57773}}^1$

素因数の和:57829

約数の個数: 40

約数和(自身を含む): 472822416

約数和(自身を除く): 274083296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 57773, 115546, 231092, 288865, 462184, 577730, 924368, 1155460, 2310920, 2484239, 4621840, 4968478, 9936956, 12421195, 19873912, 24842390, 39747824, 49684780, 99369560, 198739120]

約数ペア:

[(1, 198739120), (2, 99369560), (4, 49684780), (5, 39747824), (8, 24842390), (10, 19873912), (16, 12421195), (20, 9936956), (40, 4968478), (43, 4621840), (80, 2484239), (86, 2310920), (172, 1155460), (215, 924368), (344, 577730), (430, 462184), (688, 288865), (860, 231092), (1720, 115546), (3440, 57773)]