18102760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1123}}^1$

素因数の和:1178

約数の個数: 64

約数和(自身を含む): 45319680

約数和(自身を除く): 27216920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1123, 1240, 1612, 2015, 2246, 3224, 4030, 4492, 5615, 8060, 8984, 11230, 14599, 16120, 22460, 29198, 34813, 44920, 58396, 69626, 72995, 116792, 139252, 145990, 174065, 278504, 291980, 348130, 452569, 583960, 696260, 905138, 1392520, 1810276, 2262845, 3620552, 4525690, 9051380, 18102760]

約数ペア:

[(1, 18102760), (2, 9051380), (4, 4525690), (5, 3620552), (8, 2262845), (10, 1810276), (13, 1392520), (20, 905138), (26, 696260), (31, 583960), (40, 452569), (52, 348130), (62, 291980), (65, 278504), (104, 174065), (124, 145990), (130, 139252), (155, 116792), (248, 72995), (260, 69626), (310, 58396), (403, 44920), (520, 34813), (620, 29198), (806, 22460), (1123, 16120), (1240, 14599), (1612, 11230), (2015, 8984), (2246, 8060), (3224, 5615), (4030, 4492)]