87688380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{389}}^1$

素因数の和:448

約数の個数: 144

約数和(自身を含む): 281604960

約数和(自身を除く): 193916580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 289, 340, 389, 390, 442, 510, 578, 663, 778, 780, 867, 884, 1020, 1105, 1156, 1167, 1326, 1445, 1556, 1734, 1945, 2210, 2334, 2652, 2890, 3315, 3468, 3757, 3890, 4335, 4420, 4668, 5057, 5780, 5835, 6613, 6630, 7514, 7780, 8670, 10114, 11271, 11670, 13226, 13260, 15028, 15171, 17340, 18785, 19839, 20228, 22542, 23340, 25285, 26452, 30342, 33065, 37570, 39678, 45084, 50570, 56355, 60684, 66130, 75140, 75855, 79356, 85969, 99195, 101140, 112421, 112710, 132260, 151710, 171938, 198390, 224842, 225420, 257907, 303420, 337263, 343876, 396780, 429845, 449684, 515814, 562105, 674526, 859690, 1031628, 1124210, 1289535, 1349052, 1461473, 1686315, 1719380, 2248420, 2579070, 2922946, 3372630, 4384419, 5158140, 5845892, 6745260, 7307365, 8768838, 14614730, 17537676, 21922095, 29229460, 43844190, 87688380]

約数ペア:

[(1, 87688380), (2, 43844190), (3, 29229460), (4, 21922095), (5, 17537676), (6, 14614730), (10, 8768838), (12, 7307365), (13, 6745260), (15, 5845892), (17, 5158140), (20, 4384419), (26, 3372630), (30, 2922946), (34, 2579070), (39, 2248420), (51, 1719380), (52, 1686315), (60, 1461473), (65, 1349052), (68, 1289535), (78, 1124210), (85, 1031628), (102, 859690), (130, 674526), (156, 562105), (170, 515814), (195, 449684), (204, 429845), (221, 396780), (255, 343876), (260, 337263), (289, 303420), (340, 257907), (389, 225420), (390, 224842), (442, 198390), (510, 171938), (578, 151710), (663, 132260), (778, 112710), (780, 112421), (867, 101140), (884, 99195), (1020, 85969), (1105, 79356), (1156, 75855), (1167, 75140), (1326, 66130), (1445, 60684), (1556, 56355), (1734, 50570), (1945, 45084), (2210, 39678), (2334, 37570), (2652, 33065), (2890, 30342), (3315, 26452), (3468, 25285), (3757, 23340), (3890, 22542), (4335, 20228), (4420, 19839), (4668, 18785), (5057, 17340), (5780, 15171), (5835, 15028), (6613, 13260), (6630, 13226), (7514, 11670), (7780, 11271), (8670, 10114)]