201194980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{859}}^1$

素因数の和:1121

約数の個数: 72

約数和(自身を含む): 494121600

約数和(自身を除く): 292926620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 239, 245, 478, 490, 859, 956, 980, 1195, 1673, 1718, 2390, 3346, 3436, 4295, 4780, 6013, 6692, 8365, 8590, 11711, 12026, 16730, 17180, 23422, 24052, 30065, 33460, 42091, 46844, 58555, 60130, 84182, 117110, 120260, 168364, 205301, 210455, 234220, 410602, 420910, 821204, 841820, 1026505, 1437107, 2053010, 2874214, 4106020, 5748428, 7185535, 10059749, 14371070, 20119498, 28742140, 40238996, 50298745, 100597490, 201194980]

約数ペア:

[(1, 201194980), (2, 100597490), (4, 50298745), (5, 40238996), (7, 28742140), (10, 20119498), (14, 14371070), (20, 10059749), (28, 7185535), (35, 5748428), (49, 4106020), (70, 2874214), (98, 2053010), (140, 1437107), (196, 1026505), (239, 841820), (245, 821204), (478, 420910), (490, 410602), (859, 234220), (956, 210455), (980, 205301), (1195, 168364), (1673, 120260), (1718, 117110), (2390, 84182), (3346, 60130), (3436, 58555), (4295, 46844), (4780, 42091), (6013, 33460), (6692, 30065), (8365, 24052), (8590, 23422), (11711, 17180), (12026, 16730)]