31553860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{773}}^1$

素因数の和:952

約数の個数: 48

約数和(自身を含む): 71907696

約数和(自身を除く): 40353836

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 260, 314, 628, 773, 785, 1546, 1570, 2041, 3092, 3140, 3865, 4082, 7730, 8164, 10049, 10205, 15460, 20098, 20410, 40196, 40820, 50245, 100490, 121361, 200980, 242722, 485444, 606805, 1213610, 1577693, 2427220, 3155386, 6310772, 7888465, 15776930, 31553860]

約数ペア:

[(1, 31553860), (2, 15776930), (4, 7888465), (5, 6310772), (10, 3155386), (13, 2427220), (20, 1577693), (26, 1213610), (52, 606805), (65, 485444), (130, 242722), (157, 200980), (260, 121361), (314, 100490), (628, 50245), (773, 40820), (785, 40196), (1546, 20410), (1570, 20098), (2041, 15460), (3092, 10205), (3140, 10049), (3865, 8164), (4082, 7730)]