640870440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24611}}^1$

素因数の和:24663

約数の個数: 128

約数和(自身を含む): 2268241920

約数和(自身を除く): 1627371480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1736, 1860, 2170, 2604, 3255, 3720, 4340, 5208, 6510, 8680, 13020, 24611, 26040, 49222, 73833, 98444, 123055, 147666, 172277, 196888, 246110, 295332, 344554, 369165, 492220, 516831, 590664, 689108, 738330, 762941, 861385, 984440, 1033662, 1378216, 1476660, 1525882, 1722770, 2067324, 2288823, 2584155, 2953320, 3051764, 3445540, 3814705, 4134648, 4577646, 5168310, 5340587, 6103528, 6891080, 7629410, 9155292, 10336620, 10681174, 11444115, 15258820, 16021761, 18310584, 20673240, 21362348, 22888230, 26702935, 30517640, 32043522, 42724696, 45776460, 53405870, 64087044, 80108805, 91552920, 106811740, 128174088, 160217610, 213623480, 320435220, 640870440]

約数ペア:

[(1, 640870440), (2, 320435220), (3, 213623480), (4, 160217610), (5, 128174088), (6, 106811740), (7, 91552920), (8, 80108805), (10, 64087044), (12, 53405870), (14, 45776460), (15, 42724696), (20, 32043522), (21, 30517640), (24, 26702935), (28, 22888230), (30, 21362348), (31, 20673240), (35, 18310584), (40, 16021761), (42, 15258820), (56, 11444115), (60, 10681174), (62, 10336620), (70, 9155292), (84, 7629410), (93, 6891080), (105, 6103528), (120, 5340587), (124, 5168310), (140, 4577646), (155, 4134648), (168, 3814705), (186, 3445540), (210, 3051764), (217, 2953320), (248, 2584155), (280, 2288823), (310, 2067324), (372, 1722770), (420, 1525882), (434, 1476660), (465, 1378216), (620, 1033662), (651, 984440), (744, 861385), (840, 762941), (868, 738330), (930, 689108), (1085, 590664), (1240, 516831), (1302, 492220), (1736, 369165), (1860, 344554), (2170, 295332), (2604, 246110), (3255, 196888), (3720, 172277), (4340, 147666), (5208, 123055), (6510, 98444), (8680, 73833), (13020, 49222), (24611, 26040)]