159440440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1811}}^1$

素因数の和:1924

約数の個数: 64

約数和(自身を含む): 375736320

約数和(自身を除く): 216295880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 710, 1240, 1420, 1811, 2201, 2840, 3622, 4402, 7244, 8804, 9055, 11005, 14488, 17608, 18110, 22010, 36220, 44020, 56141, 72440, 88040, 112282, 128581, 224564, 257162, 280705, 449128, 514324, 561410, 642905, 1028648, 1122820, 1285810, 2245640, 2571620, 3986011, 5143240, 7972022, 15944044, 19930055, 31888088, 39860110, 79720220, 159440440]

約数ペア:

[(1, 159440440), (2, 79720220), (4, 39860110), (5, 31888088), (8, 19930055), (10, 15944044), (20, 7972022), (31, 5143240), (40, 3986011), (62, 2571620), (71, 2245640), (124, 1285810), (142, 1122820), (155, 1028648), (248, 642905), (284, 561410), (310, 514324), (355, 449128), (568, 280705), (620, 257162), (710, 224564), (1240, 128581), (1420, 112282), (1811, 88040), (2201, 72440), (2840, 56141), (3622, 44020), (4402, 36220), (7244, 22010), (8804, 18110), (9055, 17608), (11005, 14488)]