20865460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{797}}^1$

素因数の和:841

約数の個数: 96

約数和(自身を含む): 57915648

約数和(自身を除く): 37050188

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 28, 34, 35, 44, 55, 68, 70, 77, 85, 110, 119, 140, 154, 170, 187, 220, 238, 308, 340, 374, 385, 476, 595, 748, 770, 797, 935, 1190, 1309, 1540, 1594, 1870, 2380, 2618, 3188, 3740, 3985, 5236, 5579, 6545, 7970, 8767, 11158, 13090, 13549, 15940, 17534, 22316, 26180, 27098, 27895, 35068, 43835, 54196, 55790, 61369, 67745, 87670, 94843, 111580, 122738, 135490, 149039, 175340, 189686, 245476, 270980, 298078, 306845, 379372, 474215, 596156, 613690, 745195, 948430, 1043273, 1227380, 1490390, 1896860, 2086546, 2980780, 4173092, 5216365, 10432730, 20865460]

約数ペア:

[(1, 20865460), (2, 10432730), (4, 5216365), (5, 4173092), (7, 2980780), (10, 2086546), (11, 1896860), (14, 1490390), (17, 1227380), (20, 1043273), (22, 948430), (28, 745195), (34, 613690), (35, 596156), (44, 474215), (55, 379372), (68, 306845), (70, 298078), (77, 270980), (85, 245476), (110, 189686), (119, 175340), (140, 149039), (154, 135490), (170, 122738), (187, 111580), (220, 94843), (238, 87670), (308, 67745), (340, 61369), (374, 55790), (385, 54196), (476, 43835), (595, 35068), (748, 27895), (770, 27098), (797, 26180), (935, 22316), (1190, 17534), (1309, 15940), (1540, 13549), (1594, 13090), (1870, 11158), (2380, 8767), (2618, 7970), (3188, 6545), (3740, 5579), (3985, 5236)]