66542500

素因数分解:

$2^2\times 5^4\times {\mathrm{43}}^1\times {\mathrm{619}}^1$

素因数の和:686

約数の個数: 60

約数和(自身を含む): 149139760

約数和(自身を除く): 82597260

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 500, 619, 625, 860, 1075, 1238, 1250, 2150, 2476, 2500, 3095, 4300, 5375, 6190, 10750, 12380, 15475, 21500, 26617, 26875, 30950, 53234, 53750, 61900, 77375, 106468, 107500, 133085, 154750, 266170, 309500, 386875, 532340, 665425, 773750, 1330850, 1547500, 2661700, 3327125, 6654250, 13308500, 16635625, 33271250, 66542500]

約数ペア:

[(1, 66542500), (2, 33271250), (4, 16635625), (5, 13308500), (10, 6654250), (20, 3327125), (25, 2661700), (43, 1547500), (50, 1330850), (86, 773750), (100, 665425), (125, 532340), (172, 386875), (215, 309500), (250, 266170), (430, 154750), (500, 133085), (619, 107500), (625, 106468), (860, 77375), (1075, 61900), (1238, 53750), (1250, 53234), (2150, 30950), (2476, 26875), (2500, 26617), (3095, 21500), (4300, 15475), (5375, 12380), (6190, 10750)]