20170531040

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{72997}}^1$

素因数の和:73180

約数の個数: 96

約数和(自身を含む): 52316790624

約数和(自身を除く): 32146259584

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 157, 160, 176, 220, 314, 352, 440, 628, 785, 880, 1256, 1570, 1727, 1760, 2512, 3140, 3454, 5024, 6280, 6908, 8635, 12560, 13816, 17270, 25120, 27632, 34540, 55264, 69080, 72997, 138160, 145994, 276320, 291988, 364985, 583976, 729970, 802967, 1167952, 1459940, 1605934, 2335904, 2919880, 3211868, 4014835, 5839760, 6423736, 8029670, 11460529, 11679520, 12847472, 16059340, 22921058, 25694944, 32118680, 45842116, 57302645, 64237360, 91684232, 114605290, 126065819, 128474720, 183368464, 229210580, 252131638, 366736928, 458421160, 504263276, 630329095, 916842320, 1008526552, 1260658190, 1833684640, 2017053104, 2521316380, 4034106208, 5042632760, 10085265520, 20170531040]

約数ペア:

[(1, 20170531040), (2, 10085265520), (4, 5042632760), (5, 4034106208), (8, 2521316380), (10, 2017053104), (11, 1833684640), (16, 1260658190), (20, 1008526552), (22, 916842320), (32, 630329095), (40, 504263276), (44, 458421160), (55, 366736928), (80, 252131638), (88, 229210580), (110, 183368464), (157, 128474720), (160, 126065819), (176, 114605290), (220, 91684232), (314, 64237360), (352, 57302645), (440, 45842116), (628, 32118680), (785, 25694944), (880, 22921058), (1256, 16059340), (1570, 12847472), (1727, 11679520), (1760, 11460529), (2512, 8029670), (3140, 6423736), (3454, 5839760), (5024, 4014835), (6280, 3211868), (6908, 2919880), (8635, 2335904), (12560, 1605934), (13816, 1459940), (17270, 1167952), (25120, 802967), (27632, 729970), (34540, 583976), (55264, 364985), (69080, 291988), (72997, 276320), (138160, 145994)]