20147856784

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{15451}}^1$

素因数の和:15740

約数の個数: 80

約数和(自身を含む): 44145745920

約数和(自身を除く): 23997889136

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 176, 239, 248, 341, 478, 496, 682, 956, 1364, 1912, 2629, 2728, 3824, 5258, 5456, 7409, 10516, 14818, 15451, 21032, 29636, 30902, 42064, 59272, 61804, 81499, 118544, 123608, 162998, 169961, 247216, 325996, 339922, 478981, 651992, 679844, 957962, 1303984, 1359688, 1915924, 2719376, 3692789, 3831848, 5268791, 7385578, 7663696, 10537582, 14771156, 21075164, 29542312, 40620679, 42150328, 59084624, 81241358, 84300656, 114476459, 162482716, 228952918, 324965432, 457905836, 649930864, 915811672, 1259241049, 1831623344, 2518482098, 5036964196, 10073928392, 20147856784]

約数ペア:

[(1, 20147856784), (2, 10073928392), (4, 5036964196), (8, 2518482098), (11, 1831623344), (16, 1259241049), (22, 915811672), (31, 649930864), (44, 457905836), (62, 324965432), (88, 228952918), (124, 162482716), (176, 114476459), (239, 84300656), (248, 81241358), (341, 59084624), (478, 42150328), (496, 40620679), (682, 29542312), (956, 21075164), (1364, 14771156), (1912, 10537582), (2629, 7663696), (2728, 7385578), (3824, 5268791), (5258, 3831848), (5456, 3692789), (7409, 2719376), (10516, 1915924), (14818, 1359688), (15451, 1303984), (21032, 957962), (29636, 679844), (30902, 651992), (42064, 478981), (59272, 339922), (61804, 325996), (81499, 247216), (118544, 169961), (123608, 162998)]