12240400

素因数分解:

$2^4\times 5^2\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:520

約数の個数: 60

約数和(自身を含む): 29890944

約数和(自身を除く): 17650544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 142, 200, 284, 355, 400, 431, 568, 710, 862, 1136, 1420, 1724, 1775, 2155, 2840, 3448, 3550, 4310, 5680, 6896, 7100, 8620, 10775, 14200, 17240, 21550, 28400, 30601, 34480, 43100, 61202, 86200, 122404, 153005, 172400, 244808, 306010, 489616, 612020, 765025, 1224040, 1530050, 2448080, 3060100, 6120200, 12240400]

約数ペア:

[(1, 12240400), (2, 6120200), (4, 3060100), (5, 2448080), (8, 1530050), (10, 1224040), (16, 765025), (20, 612020), (25, 489616), (40, 306010), (50, 244808), (71, 172400), (80, 153005), (100, 122404), (142, 86200), (200, 61202), (284, 43100), (355, 34480), (400, 30601), (431, 28400), (568, 21550), (710, 17240), (862, 14200), (1136, 10775), (1420, 8620), (1724, 7100), (1775, 6896), (2155, 5680), (2840, 4310), (3448, 3550)]