90089680

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{18461}}^1$

素因数の和:18535

約数の個数: 40

約数和(自身を含む): 212903784

約数和(自身を除く): 122814104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 18461, 36922, 73844, 92305, 147688, 184610, 295376, 369220, 738440, 1126121, 1476880, 2252242, 4504484, 5630605, 9008968, 11261210, 18017936, 22522420, 45044840, 90089680]

約数ペア:

[(1, 90089680), (2, 45044840), (4, 22522420), (5, 18017936), (8, 11261210), (10, 9008968), (16, 5630605), (20, 4504484), (40, 2252242), (61, 1476880), (80, 1126121), (122, 738440), (244, 369220), (305, 295376), (488, 184610), (610, 147688), (976, 92305), (1220, 73844), (2440, 36922), (4880, 18461)]