719260760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:397

約数の個数: 128

約数和(自身を含む): 1750602240

約数和(自身を除く): 1031341480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 61, 62, 74, 122, 124, 148, 155, 185, 244, 248, 257, 296, 305, 310, 370, 488, 514, 610, 620, 740, 1028, 1147, 1220, 1240, 1285, 1480, 1891, 2056, 2257, 2294, 2440, 2570, 3782, 4514, 4588, 5140, 5735, 7564, 7967, 9028, 9176, 9455, 9509, 10280, 11285, 11470, 15128, 15677, 15934, 18056, 18910, 19018, 22570, 22940, 31354, 31868, 37820, 38036, 39835, 45140, 45880, 47545, 62708, 63736, 69967, 75640, 76072, 78385, 79670, 90280, 95090, 125416, 139934, 156770, 159340, 190180, 279868, 294779, 313540, 318680, 349835, 380360, 485987, 559736, 580049, 589558, 627080, 699670, 971974, 1160098, 1179116, 1399340, 1473895, 1943948, 2320196, 2358232, 2429935, 2798680, 2900245, 2947790, 3887896, 4640392, 4859870, 5800490, 5895580, 9719740, 11600980, 11791160, 17981519, 19439480, 23201960, 35963038, 71926076, 89907595, 143852152, 179815190, 359630380, 719260760]

約数ペア:

[(1, 719260760), (2, 359630380), (4, 179815190), (5, 143852152), (8, 89907595), (10, 71926076), (20, 35963038), (31, 23201960), (37, 19439480), (40, 17981519), (61, 11791160), (62, 11600980), (74, 9719740), (122, 5895580), (124, 5800490), (148, 4859870), (155, 4640392), (185, 3887896), (244, 2947790), (248, 2900245), (257, 2798680), (296, 2429935), (305, 2358232), (310, 2320196), (370, 1943948), (488, 1473895), (514, 1399340), (610, 1179116), (620, 1160098), (740, 971974), (1028, 699670), (1147, 627080), (1220, 589558), (1240, 580049), (1285, 559736), (1480, 485987), (1891, 380360), (2056, 349835), (2257, 318680), (2294, 313540), (2440, 294779), (2570, 279868), (3782, 190180), (4514, 159340), (4588, 156770), (5140, 139934), (5735, 125416), (7564, 95090), (7967, 90280), (9028, 79670), (9176, 78385), (9455, 76072), (9509, 75640), (10280, 69967), (11285, 63736), (11470, 62708), (15128, 47545), (15677, 45880), (15934, 45140), (18056, 39835), (18910, 38036), (19018, 37820), (22570, 31868), (22940, 31354)]