77779760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{57191}}^1$

素因数の和:57221

約数の個数: 40

約数和(自身を含む): 191478816

約数和(自身を除く): 113699056

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 57191, 114382, 228764, 285955, 457528, 571910, 915056, 972247, 1143820, 1944494, 2287640, 3888988, 4575280, 4861235, 7777976, 9722470, 15555952, 19444940, 38889880, 77779760]

約数ペア:

[(1, 77779760), (2, 38889880), (4, 19444940), (5, 15555952), (8, 9722470), (10, 7777976), (16, 4861235), (17, 4575280), (20, 3888988), (34, 2287640), (40, 1944494), (68, 1143820), (80, 972247), (85, 915056), (136, 571910), (170, 457528), (272, 285955), (340, 228764), (680, 114382), (1360, 57191)]