197653520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79699}}^1$

素因数の和:79743

約数の個数: 40

約数和(自身を含む): 474374400

約数和(自身を除く): 276720880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 79699, 159398, 318796, 398495, 637592, 796990, 1275184, 1593980, 2470669, 3187960, 4941338, 6375920, 9882676, 12353345, 19765352, 24706690, 39530704, 49413380, 98826760, 197653520]

約数ペア:

[(1, 197653520), (2, 98826760), (4, 49413380), (5, 39530704), (8, 24706690), (10, 19765352), (16, 12353345), (20, 9882676), (31, 6375920), (40, 4941338), (62, 3187960), (80, 2470669), (124, 1593980), (155, 1275184), (248, 796990), (310, 637592), (496, 398495), (620, 318796), (1240, 159398), (2480, 79699)]