20171888944

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{241}}^1\times {\mathrm{449}}^1$

素因数の和:950

約数の個数: 80

約数和(自身を含む): 40186713600

約数和(自身を除く): 20014824656

約数列:

[1, 2, 4, 8, 16, 61, 122, 191, 241, 244, 382, 449, 482, 488, 764, 898, 964, 976, 1528, 1796, 1928, 3056, 3592, 3856, 7184, 11651, 14701, 23302, 27389, 29402, 46031, 46604, 54778, 58804, 85759, 92062, 93208, 108209, 109556, 117608, 171518, 184124, 186416, 216418, 219112, 235216, 343036, 368248, 432836, 438224, 686072, 736496, 865672, 1372144, 1731344, 2807891, 5231299, 5615782, 6600749, 10462598, 11231564, 13201498, 20667919, 20925196, 22463128, 26402996, 41335838, 41850392, 44926256, 52805992, 82671676, 83700784, 105611984, 165343352, 330686704, 1260743059, 2521486118, 5042972236, 10085944472, 20171888944]

約数ペア:

[(1, 20171888944), (2, 10085944472), (4, 5042972236), (8, 2521486118), (16, 1260743059), (61, 330686704), (122, 165343352), (191, 105611984), (241, 83700784), (244, 82671676), (382, 52805992), (449, 44926256), (482, 41850392), (488, 41335838), (764, 26402996), (898, 22463128), (964, 20925196), (976, 20667919), (1528, 13201498), (1796, 11231564), (1928, 10462598), (3056, 6600749), (3592, 5615782), (3856, 5231299), (7184, 2807891), (11651, 1731344), (14701, 1372144), (23302, 865672), (27389, 736496), (29402, 686072), (46031, 438224), (46604, 432836), (54778, 368248), (58804, 343036), (85759, 235216), (92062, 219112), (93208, 216418), (108209, 186416), (109556, 184124), (117608, 171518)]