31303020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{74531}}^1$

素因数の和:74550

約数の個数: 48

約数和(自身を含む): 100171008

約数和(自身を除く): 68867988

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 74531, 149062, 223593, 298124, 372655, 447186, 521717, 745310, 894372, 1043434, 1117965, 1490620, 1565151, 2086868, 2235930, 2608585, 3130302, 4471860, 5217170, 6260604, 7825755, 10434340, 15651510, 31303020]

約数ペア:

[(1, 31303020), (2, 15651510), (3, 10434340), (4, 7825755), (5, 6260604), (6, 5217170), (7, 4471860), (10, 3130302), (12, 2608585), (14, 2235930), (15, 2086868), (20, 1565151), (21, 1490620), (28, 1117965), (30, 1043434), (35, 894372), (42, 745310), (60, 521717), (70, 447186), (84, 372655), (105, 298124), (140, 223593), (210, 149062), (420, 74531)]