15321020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{487}}^1$

素因数の和:531

約数の個数: 72

約数和(自身を含む): 38163552

約数和(自身を除く): 22842532

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 143, 220, 242, 260, 286, 484, 487, 572, 605, 715, 974, 1210, 1430, 1573, 1948, 2420, 2435, 2860, 3146, 4870, 5357, 6292, 6331, 7865, 9740, 10714, 12662, 15730, 21428, 25324, 26785, 31460, 31655, 53570, 58927, 63310, 69641, 107140, 117854, 126620, 139282, 235708, 278564, 294635, 348205, 589270, 696410, 766051, 1178540, 1392820, 1532102, 3064204, 3830255, 7660510, 15321020]

約数ペア:

[(1, 15321020), (2, 7660510), (4, 3830255), (5, 3064204), (10, 1532102), (11, 1392820), (13, 1178540), (20, 766051), (22, 696410), (26, 589270), (44, 348205), (52, 294635), (55, 278564), (65, 235708), (110, 139282), (121, 126620), (130, 117854), (143, 107140), (220, 69641), (242, 63310), (260, 58927), (286, 53570), (484, 31655), (487, 31460), (572, 26785), (605, 25324), (715, 21428), (974, 15730), (1210, 12662), (1430, 10714), (1573, 9740), (1948, 7865), (2420, 6331), (2435, 6292), (2860, 5357), (3146, 4870)]