865223560

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1\times {\mathrm{1013}}^1$

素因数の和:1318

約数の個数: 64

約数和(自身を含む): 1975596480

約数和(自身を除く): 1110372920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 163, 262, 326, 524, 652, 655, 815, 1013, 1048, 1304, 1310, 1630, 2026, 2620, 3260, 4052, 5065, 5240, 6520, 8104, 10130, 20260, 21353, 40520, 42706, 85412, 106765, 132703, 165119, 170824, 213530, 265406, 330238, 427060, 530812, 660476, 663515, 825595, 854120, 1061624, 1320952, 1327030, 1651190, 2654060, 3302380, 5308120, 6604760, 21630589, 43261178, 86522356, 108152945, 173044712, 216305890, 432611780, 865223560]

約数ペア:

[(1, 865223560), (2, 432611780), (4, 216305890), (5, 173044712), (8, 108152945), (10, 86522356), (20, 43261178), (40, 21630589), (131, 6604760), (163, 5308120), (262, 3302380), (326, 2654060), (524, 1651190), (652, 1327030), (655, 1320952), (815, 1061624), (1013, 854120), (1048, 825595), (1304, 663515), (1310, 660476), (1630, 530812), (2026, 427060), (2620, 330238), (3260, 265406), (4052, 213530), (5065, 170824), (5240, 165119), (6520, 132703), (8104, 106765), (10130, 85412), (20260, 42706), (21353, 40520)]