31018780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2251}}^1$

素因数の和:2326

約数の個数: 48

約数和(自身を含む): 71505504

約数和(自身を除く): 40486724

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2251, 2756, 3445, 4502, 6890, 9004, 11255, 13780, 22510, 29263, 45020, 58526, 117052, 119303, 146315, 238606, 292630, 477212, 585260, 596515, 1193030, 1550939, 2386060, 3101878, 6203756, 7754695, 15509390, 31018780]

約数ペア:

[(1, 31018780), (2, 15509390), (4, 7754695), (5, 6203756), (10, 3101878), (13, 2386060), (20, 1550939), (26, 1193030), (52, 596515), (53, 585260), (65, 477212), (106, 292630), (130, 238606), (212, 146315), (260, 119303), (265, 117052), (530, 58526), (689, 45020), (1060, 29263), (1378, 22510), (2251, 13780), (2756, 11255), (3445, 9004), (4502, 6890)]