664994780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{103}}^1\times {\mathrm{1117}}^1$

素因数の和:1263

約数の個数: 72

約数和(自身を含む): 1499211168

約数和(自身を除く): 834216388

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 103, 170, 206, 289, 340, 412, 515, 578, 1030, 1117, 1156, 1445, 1751, 2060, 2234, 2890, 3502, 4468, 5585, 5780, 7004, 8755, 11170, 17510, 18989, 22340, 29767, 35020, 37978, 59534, 75956, 94945, 115051, 119068, 148835, 189890, 230102, 297670, 322813, 379780, 460204, 575255, 595340, 645626, 1150510, 1291252, 1614065, 1955867, 2301020, 3228130, 3911734, 6456260, 7823468, 9779335, 19558670, 33249739, 39117340, 66499478, 132998956, 166248695, 332497390, 664994780]

約数ペア:

[(1, 664994780), (2, 332497390), (4, 166248695), (5, 132998956), (10, 66499478), (17, 39117340), (20, 33249739), (34, 19558670), (68, 9779335), (85, 7823468), (103, 6456260), (170, 3911734), (206, 3228130), (289, 2301020), (340, 1955867), (412, 1614065), (515, 1291252), (578, 1150510), (1030, 645626), (1117, 595340), (1156, 575255), (1445, 460204), (1751, 379780), (2060, 322813), (2234, 297670), (2890, 230102), (3502, 189890), (4468, 148835), (5585, 119068), (5780, 115051), (7004, 94945), (8755, 75956), (11170, 59534), (17510, 37978), (18989, 35020), (22340, 29767)]