81421860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2221}}^1$

素因数の和:2293

約数の個数: 96

約数和(自身を含む): 250854912

約数和(自身を除く): 169433052

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 47, 52, 60, 65, 78, 94, 130, 141, 156, 188, 195, 235, 260, 282, 390, 470, 564, 611, 705, 780, 940, 1222, 1410, 1833, 2221, 2444, 2820, 3055, 3666, 4442, 6110, 6663, 7332, 8884, 9165, 11105, 12220, 13326, 18330, 22210, 26652, 28873, 33315, 36660, 44420, 57746, 66630, 86619, 104387, 115492, 133260, 144365, 173238, 208774, 288730, 313161, 346476, 417548, 433095, 521935, 577460, 626322, 866190, 1043870, 1252644, 1357031, 1565805, 1732380, 2087740, 2714062, 3131610, 4071093, 5428124, 6263220, 6785155, 8142186, 13570310, 16284372, 20355465, 27140620, 40710930, 81421860]

約数ペア:

[(1, 81421860), (2, 40710930), (3, 27140620), (4, 20355465), (5, 16284372), (6, 13570310), (10, 8142186), (12, 6785155), (13, 6263220), (15, 5428124), (20, 4071093), (26, 3131610), (30, 2714062), (39, 2087740), (47, 1732380), (52, 1565805), (60, 1357031), (65, 1252644), (78, 1043870), (94, 866190), (130, 626322), (141, 577460), (156, 521935), (188, 433095), (195, 417548), (235, 346476), (260, 313161), (282, 288730), (390, 208774), (470, 173238), (564, 144365), (611, 133260), (705, 115492), (780, 104387), (940, 86619), (1222, 66630), (1410, 57746), (1833, 44420), (2221, 36660), (2444, 33315), (2820, 28873), (3055, 26652), (3666, 22210), (4442, 18330), (6110, 13326), (6663, 12220), (7332, 11105), (8884, 9165)]