80122250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:396

約数の個数: 64

約数和(自身を含む): 163931040

約数和(自身を除く): 83808790

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 89, 125, 130, 178, 250, 277, 325, 445, 554, 650, 890, 1157, 1385, 1625, 2225, 2314, 2770, 3250, 3601, 4450, 5785, 6925, 7202, 11125, 11570, 13850, 18005, 22250, 24653, 28925, 34625, 36010, 49306, 57850, 69250, 90025, 123265, 144625, 180050, 246530, 289250, 320489, 450125, 616325, 640978, 900250, 1232650, 1602445, 3081625, 3204890, 6163250, 8012225, 16024450, 40061125, 80122250]

約数ペア:

[(1, 80122250), (2, 40061125), (5, 16024450), (10, 8012225), (13, 6163250), (25, 3204890), (26, 3081625), (50, 1602445), (65, 1232650), (89, 900250), (125, 640978), (130, 616325), (178, 450125), (250, 320489), (277, 289250), (325, 246530), (445, 180050), (554, 144625), (650, 123265), (890, 90025), (1157, 69250), (1385, 57850), (1625, 49306), (2225, 36010), (2314, 34625), (2770, 28925), (3250, 24653), (3601, 22250), (4450, 18005), (5785, 13850), (6925, 11570), (7202, 11125)]