19993345360

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{95279}}^1$

素因数の和:95396

約数の個数: 80

約数和(自身を含む): 48345834240

約数和(自身を除く): 28352488880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 61, 80, 86, 122, 172, 215, 244, 305, 344, 430, 488, 610, 688, 860, 976, 1220, 1720, 2440, 2623, 3440, 4880, 5246, 10492, 13115, 20984, 26230, 41968, 52460, 95279, 104920, 190558, 209840, 381116, 476395, 762232, 952790, 1524464, 1905580, 3811160, 4096997, 5812019, 7622320, 8193994, 11624038, 16387988, 20484985, 23248076, 29060095, 32775976, 40969970, 46496152, 58120190, 65551952, 81939940, 92992304, 116240380, 163879880, 232480760, 249916817, 327759760, 464961520, 499833634, 999667268, 1249584085, 1999334536, 2499168170, 3998669072, 4998336340, 9996672680, 19993345360]

約数ペア:

[(1, 19993345360), (2, 9996672680), (4, 4998336340), (5, 3998669072), (8, 2499168170), (10, 1999334536), (16, 1249584085), (20, 999667268), (40, 499833634), (43, 464961520), (61, 327759760), (80, 249916817), (86, 232480760), (122, 163879880), (172, 116240380), (215, 92992304), (244, 81939940), (305, 65551952), (344, 58120190), (430, 46496152), (488, 40969970), (610, 32775976), (688, 29060095), (860, 23248076), (976, 20484985), (1220, 16387988), (1720, 11624038), (2440, 8193994), (2623, 7622320), (3440, 5812019), (4880, 4096997), (5246, 3811160), (10492, 1905580), (13115, 1524464), (20984, 952790), (26230, 762232), (41968, 476395), (52460, 381116), (95279, 209840), (104920, 190558)]