20958156920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{422203}}^1$

素因数の和:422304

約数の個数: 64

約数和(自身を含む): 50613815520

約数和(自身を除く): 29655658600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 73, 85, 136, 146, 170, 292, 340, 365, 584, 680, 730, 1241, 1460, 2482, 2920, 4964, 6205, 9928, 12410, 24820, 49640, 422203, 844406, 1688812, 2111015, 3377624, 4222030, 7177451, 8444060, 14354902, 16888120, 28709804, 30820819, 35887255, 57419608, 61641638, 71774510, 123283276, 143549020, 154104095, 246566552, 287098040, 308208190, 523953923, 616416380, 1047907846, 1232832760, 2095815692, 2619769615, 4191631384, 5239539230, 10479078460, 20958156920]

約数ペア:

[(1, 20958156920), (2, 10479078460), (4, 5239539230), (5, 4191631384), (8, 2619769615), (10, 2095815692), (17, 1232832760), (20, 1047907846), (34, 616416380), (40, 523953923), (68, 308208190), (73, 287098040), (85, 246566552), (136, 154104095), (146, 143549020), (170, 123283276), (292, 71774510), (340, 61641638), (365, 57419608), (584, 35887255), (680, 30820819), (730, 28709804), (1241, 16888120), (1460, 14354902), (2482, 8444060), (2920, 7177451), (4964, 4222030), (6205, 3377624), (9928, 2111015), (12410, 1688812), (24820, 844406), (49640, 422203)]