90884560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2819}}^1$

素因数の和:2876

約数の個数: 80

約数和(自身を含む): 234984960

約数和(自身を除く): 144100400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 2819, 3224, 4030, 5638, 6448, 8060, 11276, 14095, 16120, 22552, 28190, 32240, 36647, 45104, 56380, 73294, 87389, 112760, 146588, 174778, 183235, 225520, 293176, 349556, 366470, 436945, 586352, 699112, 732940, 873890, 1136057, 1398224, 1465880, 1747780, 2272114, 2931760, 3495560, 4544228, 5680285, 6991120, 9088456, 11360570, 18176912, 22721140, 45442280, 90884560]

約数ペア:

[(1, 90884560), (2, 45442280), (4, 22721140), (5, 18176912), (8, 11360570), (10, 9088456), (13, 6991120), (16, 5680285), (20, 4544228), (26, 3495560), (31, 2931760), (40, 2272114), (52, 1747780), (62, 1465880), (65, 1398224), (80, 1136057), (104, 873890), (124, 732940), (130, 699112), (155, 586352), (208, 436945), (248, 366470), (260, 349556), (310, 293176), (403, 225520), (496, 183235), (520, 174778), (620, 146588), (806, 112760), (1040, 87389), (1240, 73294), (1612, 56380), (2015, 45104), (2480, 36647), (2819, 32240), (3224, 28190), (4030, 22552), (5638, 16120), (6448, 14095), (8060, 11276)]