128671940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{4241}}^1$

素因数の和:4328

約数の個数: 48

約数和(自身を含む): 284349744

約数和(自身を除く): 155677804

約数列:

[1, 2, 4, 5, 10, 20, 37, 41, 74, 82, 148, 164, 185, 205, 370, 410, 740, 820, 1517, 3034, 4241, 6068, 7585, 8482, 15170, 16964, 21205, 30340, 42410, 84820, 156917, 173881, 313834, 347762, 627668, 695524, 784585, 869405, 1569170, 1738810, 3138340, 3477620, 6433597, 12867194, 25734388, 32167985, 64335970, 128671940]

約数ペア:

[(1, 128671940), (2, 64335970), (4, 32167985), (5, 25734388), (10, 12867194), (20, 6433597), (37, 3477620), (41, 3138340), (74, 1738810), (82, 1569170), (148, 869405), (164, 784585), (185, 695524), (205, 627668), (370, 347762), (410, 313834), (740, 173881), (820, 156917), (1517, 84820), (3034, 42410), (4241, 30340), (6068, 21205), (7585, 16964), (8482, 15170)]