56725040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 138205440

約数和(自身を除く): 81480400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 89, 124, 155, 178, 248, 257, 310, 356, 445, 496, 514, 620, 712, 890, 1028, 1240, 1285, 1424, 1780, 2056, 2480, 2570, 2759, 3560, 4112, 5140, 5518, 7120, 7967, 10280, 11036, 13795, 15934, 20560, 22072, 22873, 27590, 31868, 39835, 44144, 45746, 55180, 63736, 79670, 91492, 110360, 114365, 127472, 159340, 182984, 220720, 228730, 318680, 365968, 457460, 637360, 709063, 914920, 1418126, 1829840, 2836252, 3545315, 5672504, 7090630, 11345008, 14181260, 28362520, 56725040]

約数ペア:

[(1, 56725040), (2, 28362520), (4, 14181260), (5, 11345008), (8, 7090630), (10, 5672504), (16, 3545315), (20, 2836252), (31, 1829840), (40, 1418126), (62, 914920), (80, 709063), (89, 637360), (124, 457460), (155, 365968), (178, 318680), (248, 228730), (257, 220720), (310, 182984), (356, 159340), (445, 127472), (496, 114365), (514, 110360), (620, 91492), (712, 79670), (890, 63736), (1028, 55180), (1240, 45746), (1285, 44144), (1424, 39835), (1780, 31868), (2056, 27590), (2480, 22873), (2570, 22072), (2759, 20560), (3560, 15934), (4112, 13795), (5140, 11036), (5518, 10280), (7120, 7967)]