89959940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{3229}}^1$

素因数の和:3444

約数の個数: 48

約数和(自身を含む): 217056000

約数和(自身を除く): 127096060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2786, 3229, 3980, 5572, 6458, 6965, 12916, 13930, 16145, 22603, 27860, 32290, 45206, 64580, 90412, 113015, 226030, 452060, 642571, 1285142, 2570284, 3212855, 4497997, 6425710, 8995994, 12851420, 17991988, 22489985, 44979970, 89959940]

約数ペア:

[(1, 89959940), (2, 44979970), (4, 22489985), (5, 17991988), (7, 12851420), (10, 8995994), (14, 6425710), (20, 4497997), (28, 3212855), (35, 2570284), (70, 1285142), (140, 642571), (199, 452060), (398, 226030), (796, 113015), (995, 90412), (1393, 64580), (1990, 45206), (2786, 32290), (3229, 27860), (3980, 22603), (5572, 16145), (6458, 13930), (6965, 12916)]