20113940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{353}}^1$

素因数の和:417

約数の個数: 96

約数和(自身を含む): 54238464

約数和(自身を除く): 34124524

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 37, 44, 55, 70, 74, 77, 110, 140, 148, 154, 185, 220, 259, 308, 353, 370, 385, 407, 518, 706, 740, 770, 814, 1036, 1295, 1412, 1540, 1628, 1765, 2035, 2471, 2590, 2849, 3530, 3883, 4070, 4942, 5180, 5698, 7060, 7766, 8140, 9884, 11396, 12355, 13061, 14245, 15532, 19415, 24710, 26122, 27181, 28490, 38830, 49420, 52244, 54362, 56980, 65305, 77660, 91427, 108724, 130610, 135905, 143671, 182854, 261220, 271810, 287342, 365708, 457135, 543620, 574684, 718355, 914270, 1005697, 1436710, 1828540, 2011394, 2873420, 4022788, 5028485, 10056970, 20113940]

約数ペア:

[(1, 20113940), (2, 10056970), (4, 5028485), (5, 4022788), (7, 2873420), (10, 2011394), (11, 1828540), (14, 1436710), (20, 1005697), (22, 914270), (28, 718355), (35, 574684), (37, 543620), (44, 457135), (55, 365708), (70, 287342), (74, 271810), (77, 261220), (110, 182854), (140, 143671), (148, 135905), (154, 130610), (185, 108724), (220, 91427), (259, 77660), (308, 65305), (353, 56980), (370, 54362), (385, 52244), (407, 49420), (518, 38830), (706, 28490), (740, 27181), (770, 26122), (814, 24710), (1036, 19415), (1295, 15532), (1412, 14245), (1540, 13061), (1628, 12355), (1765, 11396), (2035, 9884), (2471, 8140), (2590, 7766), (2849, 7060), (3530, 5698), (3883, 5180), (4070, 4942)]