25042940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1579}}^1$

素因数の和:1662

約数の個数: 48

約数和(自身を含む): 57600480

約数和(自身を除く): 32557540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1579, 1586, 3158, 3172, 3965, 6316, 7895, 7930, 15790, 15860, 20527, 31580, 41054, 82108, 96319, 102635, 192638, 205270, 385276, 410540, 481595, 963190, 1252147, 1926380, 2504294, 5008588, 6260735, 12521470, 25042940]

約数ペア:

[(1, 25042940), (2, 12521470), (4, 6260735), (5, 5008588), (10, 2504294), (13, 1926380), (20, 1252147), (26, 963190), (52, 481595), (61, 410540), (65, 385276), (122, 205270), (130, 192638), (244, 102635), (260, 96319), (305, 82108), (610, 41054), (793, 31580), (1220, 20527), (1579, 15860), (1586, 15790), (3158, 7930), (3172, 7895), (3965, 6316)]