81530280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5807}}^1$

素因数の和:5840

約数の個数: 128

約数和(自身を含む): 292723200

約数和(自身を除く): 211192920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 702, 780, 936, 1080, 1170, 1404, 1560, 1755, 2340, 2808, 3510, 4680, 5807, 7020, 11614, 14040, 17421, 23228, 29035, 34842, 46456, 52263, 58070, 69684, 75491, 87105, 104526, 116140, 139368, 150982, 156789, 174210, 209052, 226473, 232280, 261315, 301964, 313578, 348420, 377455, 418104, 452946, 522630, 603928, 627156, 679419, 696840, 754910, 783945, 905892, 1045260, 1132365, 1254312, 1358838, 1509820, 1567890, 1811784, 2038257, 2090520, 2264730, 2717676, 3019640, 3135780, 3397095, 4076514, 4529460, 5435352, 6271560, 6794190, 8153028, 9058920, 10191285, 13588380, 16306056, 20382570, 27176760, 40765140, 81530280]

約数ペア:

[(1, 81530280), (2, 40765140), (3, 27176760), (4, 20382570), (5, 16306056), (6, 13588380), (8, 10191285), (9, 9058920), (10, 8153028), (12, 6794190), (13, 6271560), (15, 5435352), (18, 4529460), (20, 4076514), (24, 3397095), (26, 3135780), (27, 3019640), (30, 2717676), (36, 2264730), (39, 2090520), (40, 2038257), (45, 1811784), (52, 1567890), (54, 1509820), (60, 1358838), (65, 1254312), (72, 1132365), (78, 1045260), (90, 905892), (104, 783945), (108, 754910), (117, 696840), (120, 679419), (130, 627156), (135, 603928), (156, 522630), (180, 452946), (195, 418104), (216, 377455), (234, 348420), (260, 313578), (270, 301964), (312, 261315), (351, 232280), (360, 226473), (390, 209052), (468, 174210), (520, 156789), (540, 150982), (585, 139368), (702, 116140), (780, 104526), (936, 87105), (1080, 75491), (1170, 69684), (1404, 58070), (1560, 52263), (1755, 46456), (2340, 34842), (2808, 29035), (3510, 23228), (4680, 17421), (5807, 14040), (7020, 11614)]