20664160

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:284

約数の個数: 96

約数和(自身を含む): 54432000

約数和(自身を除く): 33767840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 59, 80, 88, 110, 118, 160, 176, 199, 220, 236, 295, 352, 398, 440, 472, 590, 649, 796, 880, 944, 995, 1180, 1298, 1592, 1760, 1888, 1990, 2189, 2360, 2596, 3184, 3245, 3980, 4378, 4720, 5192, 6368, 6490, 7960, 8756, 9440, 10384, 10945, 11741, 12980, 15920, 17512, 20768, 21890, 23482, 25960, 31840, 35024, 43780, 46964, 51920, 58705, 70048, 87560, 93928, 103840, 117410, 129151, 175120, 187856, 234820, 258302, 350240, 375712, 469640, 516604, 645755, 939280, 1033208, 1291510, 1878560, 2066416, 2583020, 4132832, 5166040, 10332080, 20664160]

約数ペア:

[(1, 20664160), (2, 10332080), (4, 5166040), (5, 4132832), (8, 2583020), (10, 2066416), (11, 1878560), (16, 1291510), (20, 1033208), (22, 939280), (32, 645755), (40, 516604), (44, 469640), (55, 375712), (59, 350240), (80, 258302), (88, 234820), (110, 187856), (118, 175120), (160, 129151), (176, 117410), (199, 103840), (220, 93928), (236, 87560), (295, 70048), (352, 58705), (398, 51920), (440, 46964), (472, 43780), (590, 35024), (649, 31840), (796, 25960), (880, 23482), (944, 21890), (995, 20768), (1180, 17512), (1298, 15920), (1592, 12980), (1760, 11741), (1888, 10945), (1990, 10384), (2189, 9440), (2360, 8756), (2596, 7960), (3184, 6490), (3245, 6368), (3980, 5192), (4378, 4720)]