201970540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{83}}^1\times {\mathrm{421}}^1$

素因数の和:547

約数の個数: 72

約数和(自身を含む): 457066512

約数和(自身を除く): 255095972

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 83, 85, 166, 170, 289, 332, 340, 415, 421, 578, 830, 842, 1156, 1411, 1445, 1660, 1684, 2105, 2822, 2890, 4210, 5644, 5780, 7055, 7157, 8420, 14110, 14314, 23987, 28220, 28628, 34943, 35785, 47974, 69886, 71570, 95948, 119935, 121669, 139772, 143140, 174715, 239870, 243338, 349430, 479740, 486676, 594031, 608345, 698860, 1188062, 1216690, 2376124, 2433380, 2970155, 5940310, 10098527, 11880620, 20197054, 40394108, 50492635, 100985270, 201970540]

約数ペア:

[(1, 201970540), (2, 100985270), (4, 50492635), (5, 40394108), (10, 20197054), (17, 11880620), (20, 10098527), (34, 5940310), (68, 2970155), (83, 2433380), (85, 2376124), (166, 1216690), (170, 1188062), (289, 698860), (332, 608345), (340, 594031), (415, 486676), (421, 479740), (578, 349430), (830, 243338), (842, 239870), (1156, 174715), (1411, 143140), (1445, 139772), (1660, 121669), (1684, 119935), (2105, 95948), (2822, 71570), (2890, 69886), (4210, 47974), (5644, 35785), (5780, 34943), (7055, 28628), (7157, 28220), (8420, 23987), (14110, 14314)]