20199540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5519}}^1$

素因数の和:5592

約数の個数: 48

約数和(自身を含む): 57496320

約数和(自身を除く): 37296780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 5519, 11038, 16557, 22076, 27595, 33114, 55190, 66228, 82785, 110380, 165570, 331140, 336659, 673318, 1009977, 1346636, 1683295, 2019954, 3366590, 4039908, 5049885, 6733180, 10099770, 20199540]

約数ペア:

[(1, 20199540), (2, 10099770), (3, 6733180), (4, 5049885), (5, 4039908), (6, 3366590), (10, 2019954), (12, 1683295), (15, 1346636), (20, 1009977), (30, 673318), (60, 336659), (61, 331140), (122, 165570), (183, 110380), (244, 82785), (305, 66228), (366, 55190), (610, 33114), (732, 27595), (915, 22076), (1220, 16557), (1830, 11038), (3660, 5519)]