401565890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1\times {\mathrm{331}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 813214080

約数和(自身を除く): 411648190

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 269, 331, 410, 451, 538, 662, 902, 1345, 1655, 2255, 2690, 2959, 3310, 3641, 4510, 5918, 7282, 11029, 13571, 14795, 18205, 22058, 27142, 29590, 36410, 55145, 67855, 89039, 110290, 121319, 135710, 149281, 178078, 242638, 298562, 445195, 606595, 746405, 890390, 979429, 1213190, 1492810, 1958858, 3650599, 4897145, 7301198, 9794290, 18252995, 36505990, 40156589, 80313178, 200782945, 401565890]

約数ペア:

[(1, 401565890), (2, 200782945), (5, 80313178), (10, 40156589), (11, 36505990), (22, 18252995), (41, 9794290), (55, 7301198), (82, 4897145), (110, 3650599), (205, 1958858), (269, 1492810), (331, 1213190), (410, 979429), (451, 890390), (538, 746405), (662, 606595), (902, 445195), (1345, 298562), (1655, 242638), (2255, 178078), (2690, 149281), (2959, 135710), (3310, 121319), (3641, 110290), (4510, 89039), (5918, 67855), (7282, 55145), (11029, 36410), (13571, 29590), (14795, 27142), (18205, 22058)]