90918320

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{523}}^1$

素因数の和:630

約数の個数: 80

約数和(自身を含む): 221048352

約数和(自身を除く): 130130032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 53, 80, 82, 106, 164, 205, 212, 265, 328, 410, 424, 523, 530, 656, 820, 848, 1046, 1060, 1640, 2092, 2120, 2173, 2615, 3280, 4184, 4240, 4346, 5230, 8368, 8692, 10460, 10865, 17384, 20920, 21443, 21730, 27719, 34768, 41840, 42886, 43460, 55438, 85772, 86920, 107215, 110876, 138595, 171544, 173840, 214430, 221752, 277190, 343088, 428860, 443504, 554380, 857720, 1108760, 1136479, 1715440, 2217520, 2272958, 4545916, 5682395, 9091832, 11364790, 18183664, 22729580, 45459160, 90918320]

約数ペア:

[(1, 90918320), (2, 45459160), (4, 22729580), (5, 18183664), (8, 11364790), (10, 9091832), (16, 5682395), (20, 4545916), (40, 2272958), (41, 2217520), (53, 1715440), (80, 1136479), (82, 1108760), (106, 857720), (164, 554380), (205, 443504), (212, 428860), (265, 343088), (328, 277190), (410, 221752), (424, 214430), (523, 173840), (530, 171544), (656, 138595), (820, 110876), (848, 107215), (1046, 86920), (1060, 85772), (1640, 55438), (2092, 43460), (2120, 42886), (2173, 41840), (2615, 34768), (3280, 27719), (4184, 21730), (4240, 21443), (4346, 20920), (5230, 17384), (8368, 10865), (8692, 10460)]