65145520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{409}}^1$

素因数の和:614

約数の個数: 80

約数和(自身を含む): 166551840

約数和(自身を除く): 101406320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 181, 220, 362, 409, 440, 724, 818, 880, 905, 1448, 1636, 1810, 1991, 2045, 2896, 3272, 3620, 3982, 4090, 4499, 6544, 7240, 7964, 8180, 8998, 9955, 14480, 15928, 16360, 17996, 19910, 22495, 31856, 32720, 35992, 39820, 44990, 71984, 74029, 79640, 89980, 148058, 159280, 179960, 296116, 359920, 370145, 592232, 740290, 814319, 1184464, 1480580, 1628638, 2961160, 3257276, 4071595, 5922320, 6514552, 8143190, 13029104, 16286380, 32572760, 65145520]

約数ペア:

[(1, 65145520), (2, 32572760), (4, 16286380), (5, 13029104), (8, 8143190), (10, 6514552), (11, 5922320), (16, 4071595), (20, 3257276), (22, 2961160), (40, 1628638), (44, 1480580), (55, 1184464), (80, 814319), (88, 740290), (110, 592232), (176, 370145), (181, 359920), (220, 296116), (362, 179960), (409, 159280), (440, 148058), (724, 89980), (818, 79640), (880, 74029), (905, 71984), (1448, 44990), (1636, 39820), (1810, 35992), (1991, 32720), (2045, 31856), (2896, 22495), (3272, 19910), (3620, 17996), (3982, 16360), (4090, 15928), (4499, 14480), (6544, 9955), (7240, 8998), (7964, 8180)]