2019989380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1\times {\mathrm{4129}}^1$

素因数の和:4600

約数の個数: 48

約数和(自身を含む): 4323317040

約数和(自身を除く): 2303327660

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 401, 610, 802, 1220, 1604, 2005, 4010, 4129, 8020, 8258, 16516, 20645, 24461, 41290, 48922, 82580, 97844, 122305, 244610, 251869, 489220, 503738, 1007476, 1259345, 1655729, 2518690, 3311458, 5037380, 6622916, 8278645, 16557290, 33114580, 100999469, 201998938, 403997876, 504997345, 1009994690, 2019989380]

約数ペア:

[(1, 2019989380), (2, 1009994690), (4, 504997345), (5, 403997876), (10, 201998938), (20, 100999469), (61, 33114580), (122, 16557290), (244, 8278645), (305, 6622916), (401, 5037380), (610, 3311458), (802, 2518690), (1220, 1655729), (1604, 1259345), (2005, 1007476), (4010, 503738), (4129, 489220), (8020, 251869), (8258, 244610), (16516, 122305), (20645, 97844), (24461, 82580), (41290, 48922)]