71400440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{811}}^1$

素因数の和:924

約数の個数: 64

約数和(自身を含む): 168376320

約数和(自身を除く): 96975880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 710, 811, 1240, 1420, 1622, 2201, 2840, 3244, 4055, 4402, 6488, 8110, 8804, 11005, 16220, 17608, 22010, 25141, 32440, 44020, 50282, 57581, 88040, 100564, 115162, 125705, 201128, 230324, 251410, 287905, 460648, 502820, 575810, 1005640, 1151620, 1785011, 2303240, 3570022, 7140044, 8925055, 14280088, 17850110, 35700220, 71400440]

約数ペア:

[(1, 71400440), (2, 35700220), (4, 17850110), (5, 14280088), (8, 8925055), (10, 7140044), (20, 3570022), (31, 2303240), (40, 1785011), (62, 1151620), (71, 1005640), (124, 575810), (142, 502820), (155, 460648), (248, 287905), (284, 251410), (310, 230324), (355, 201128), (568, 125705), (620, 115162), (710, 100564), (811, 88040), (1240, 57581), (1420, 50282), (1622, 44020), (2201, 32440), (2840, 25141), (3244, 22010), (4055, 17608), (4402, 16220), (6488, 11005), (8110, 8804)]