25823720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{937}}^1$

素因数の和:1014

約数の個数: 64

約数和(自身を含む): 63821520

約数和(自身を除く): 37997800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 424, 520, 530, 689, 937, 1060, 1378, 1874, 2120, 2756, 3445, 3748, 4685, 5512, 6890, 7496, 9370, 12181, 13780, 18740, 24362, 27560, 37480, 48724, 49661, 60905, 97448, 99322, 121810, 198644, 243620, 248305, 397288, 487240, 496610, 645593, 993220, 1291186, 1986440, 2582372, 3227965, 5164744, 6455930, 12911860, 25823720]

約数ペア:

[(1, 25823720), (2, 12911860), (4, 6455930), (5, 5164744), (8, 3227965), (10, 2582372), (13, 1986440), (20, 1291186), (26, 993220), (40, 645593), (52, 496610), (53, 487240), (65, 397288), (104, 248305), (106, 243620), (130, 198644), (212, 121810), (260, 99322), (265, 97448), (424, 60905), (520, 49661), (530, 48724), (689, 37480), (937, 27560), (1060, 24362), (1378, 18740), (1874, 13780), (2120, 12181), (2756, 9370), (3445, 7496), (3748, 6890), (4685, 5512)]