421755980

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{2441}}^1$

素因数の和:2666

約数の個数: 48

約数和(自身を含む): 908306784

約数和(自身を除く): 486550804

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 163, 212, 265, 326, 530, 652, 815, 1060, 1630, 2441, 3260, 4882, 8639, 9764, 12205, 17278, 24410, 34556, 43195, 48820, 86390, 129373, 172780, 258746, 397883, 517492, 646865, 795766, 1293730, 1591532, 1989415, 2587460, 3978830, 7957660, 21087799, 42175598, 84351196, 105438995, 210877990, 421755980]

約数ペア:

[(1, 421755980), (2, 210877990), (4, 105438995), (5, 84351196), (10, 42175598), (20, 21087799), (53, 7957660), (106, 3978830), (163, 2587460), (212, 1989415), (265, 1591532), (326, 1293730), (530, 795766), (652, 646865), (815, 517492), (1060, 397883), (1630, 258746), (2441, 172780), (3260, 129373), (4882, 86390), (8639, 48820), (9764, 43195), (12205, 34556), (17278, 24410)]