87511760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^2$

素因数の和:193

約数の個数: 120

約数和(自身を含む): 243460608

約数和(自身を除く): 155948848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 71, 80, 112, 124, 140, 142, 155, 217, 248, 280, 284, 310, 355, 434, 496, 497, 560, 568, 620, 710, 868, 994, 1085, 1136, 1240, 1420, 1736, 1988, 2170, 2201, 2480, 2485, 2840, 3472, 3976, 4340, 4402, 4970, 5041, 5680, 7952, 8680, 8804, 9940, 10082, 11005, 15407, 17360, 17608, 19880, 20164, 22010, 25205, 30814, 35216, 35287, 39760, 40328, 44020, 50410, 61628, 70574, 77035, 80656, 88040, 100820, 123256, 141148, 154070, 156271, 176080, 176435, 201640, 246512, 282296, 308140, 312542, 352870, 403280, 564592, 616280, 625084, 705740, 781355, 1093897, 1232560, 1250168, 1411480, 1562710, 2187794, 2500336, 2822960, 3125420, 4375588, 5469485, 6250840, 8751176, 10938970, 12501680, 17502352, 21877940, 43755880, 87511760]

約数ペア:

[(1, 87511760), (2, 43755880), (4, 21877940), (5, 17502352), (7, 12501680), (8, 10938970), (10, 8751176), (14, 6250840), (16, 5469485), (20, 4375588), (28, 3125420), (31, 2822960), (35, 2500336), (40, 2187794), (56, 1562710), (62, 1411480), (70, 1250168), (71, 1232560), (80, 1093897), (112, 781355), (124, 705740), (140, 625084), (142, 616280), (155, 564592), (217, 403280), (248, 352870), (280, 312542), (284, 308140), (310, 282296), (355, 246512), (434, 201640), (496, 176435), (497, 176080), (560, 156271), (568, 154070), (620, 141148), (710, 123256), (868, 100820), (994, 88040), (1085, 80656), (1136, 77035), (1240, 70574), (1420, 61628), (1736, 50410), (1988, 44020), (2170, 40328), (2201, 39760), (2480, 35287), (2485, 35216), (2840, 30814), (3472, 25205), (3976, 22010), (4340, 20164), (4402, 19880), (4970, 17608), (5041, 17360), (5680, 15407), (7952, 11005), (8680, 10082), (8804, 9940)]