81811600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15733}}^1$

素因数の和:15764

約数の個数: 60

約数和(自身を含む): 211685236

約数和(自身を除く): 129873636

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 15733, 31466, 62932, 78665, 125864, 157330, 204529, 251728, 314660, 393325, 409058, 629320, 786650, 818116, 1022645, 1258640, 1573300, 1636232, 2045290, 3146600, 3272464, 4090580, 5113225, 6293200, 8181160, 10226450, 16362320, 20452900, 40905800, 81811600]

約数ペア:

[(1, 81811600), (2, 40905800), (4, 20452900), (5, 16362320), (8, 10226450), (10, 8181160), (13, 6293200), (16, 5113225), (20, 4090580), (25, 3272464), (26, 3146600), (40, 2045290), (50, 1636232), (52, 1573300), (65, 1258640), (80, 1022645), (100, 818116), (104, 786650), (130, 629320), (200, 409058), (208, 393325), (260, 314660), (325, 251728), (400, 204529), (520, 157330), (650, 125864), (1040, 78665), (1300, 62932), (2600, 31466), (5200, 15733)]