40420280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{881}}^1$

素因数の和:960

約数の個数: 64

約数和(自身を含む): 96526080

約数和(自身を除く): 56105800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 620, 740, 881, 1147, 1240, 1480, 1762, 2294, 3524, 4405, 4588, 5735, 7048, 8810, 9176, 11470, 17620, 22940, 27311, 32597, 35240, 45880, 54622, 65194, 109244, 130388, 136555, 162985, 218488, 260776, 273110, 325970, 546220, 651940, 1010507, 1092440, 1303880, 2021014, 4042028, 5052535, 8084056, 10105070, 20210140, 40420280]

約数ペア:

[(1, 40420280), (2, 20210140), (4, 10105070), (5, 8084056), (8, 5052535), (10, 4042028), (20, 2021014), (31, 1303880), (37, 1092440), (40, 1010507), (62, 651940), (74, 546220), (124, 325970), (148, 273110), (155, 260776), (185, 218488), (248, 162985), (296, 136555), (310, 130388), (370, 109244), (620, 65194), (740, 54622), (881, 45880), (1147, 35240), (1240, 32597), (1480, 27311), (1762, 22940), (2294, 17620), (3524, 11470), (4405, 9176), (4588, 8810), (5735, 7048)]