51696520

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:358

約数の個数: 64

約数和(自身を含む): 119750400

約数和(自身を除く): 68053880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 109, 142, 167, 218, 284, 334, 355, 436, 545, 568, 668, 710, 835, 872, 1090, 1336, 1420, 1670, 2180, 2840, 3340, 4360, 6680, 7739, 11857, 15478, 18203, 23714, 30956, 36406, 38695, 47428, 59285, 61912, 72812, 77390, 91015, 94856, 118570, 145624, 154780, 182030, 237140, 309560, 364060, 474280, 728120, 1292413, 2584826, 5169652, 6462065, 10339304, 12924130, 25848260, 51696520]

約数ペア:

[(1, 51696520), (2, 25848260), (4, 12924130), (5, 10339304), (8, 6462065), (10, 5169652), (20, 2584826), (40, 1292413), (71, 728120), (109, 474280), (142, 364060), (167, 309560), (218, 237140), (284, 182030), (334, 154780), (355, 145624), (436, 118570), (545, 94856), (568, 91015), (668, 77390), (710, 72812), (835, 61912), (872, 59285), (1090, 47428), (1336, 38695), (1420, 36406), (1670, 30956), (2180, 23714), (2840, 18203), (3340, 15478), (4360, 11857), (6680, 7739)]