19602700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{887}}^1$

素因数の和:931

約数の個数: 72

約数和(自身を含む): 48559392

約数和(自身を除く): 28956692

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 130, 170, 221, 260, 325, 340, 425, 442, 650, 850, 884, 887, 1105, 1300, 1700, 1774, 2210, 3548, 4420, 4435, 5525, 8870, 11050, 11531, 15079, 17740, 22100, 22175, 23062, 30158, 44350, 46124, 57655, 60316, 75395, 88700, 115310, 150790, 196027, 230620, 288275, 301580, 376975, 392054, 576550, 753950, 784108, 980135, 1153100, 1507900, 1960270, 3920540, 4900675, 9801350, 19602700]

約数ペア:

[(1, 19602700), (2, 9801350), (4, 4900675), (5, 3920540), (10, 1960270), (13, 1507900), (17, 1153100), (20, 980135), (25, 784108), (26, 753950), (34, 576550), (50, 392054), (52, 376975), (65, 301580), (68, 288275), (85, 230620), (100, 196027), (130, 150790), (170, 115310), (221, 88700), (260, 75395), (325, 60316), (340, 57655), (425, 46124), (442, 44350), (650, 30158), (850, 23062), (884, 22175), (887, 22100), (1105, 17740), (1300, 15079), (1700, 11531), (1774, 11050), (2210, 8870), (3548, 5525), (4420, 4435)]