220197780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{111211}}^1$

素因数の和:111237

約数の個数: 72

約数和(自身を含む): 728661024

約数和(自身を除く): 508463244

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 111211, 222422, 333633, 444844, 556055, 667266, 1000899, 1112110, 1223321, 1334532, 1668165, 2001798, 2224220, 2446642, 3336330, 3669963, 4003596, 4893284, 5004495, 6116605, 6672660, 7339926, 10008990, 11009889, 12233210, 14679852, 18349815, 20017980, 22019778, 24466420, 36699630, 44039556, 55049445, 73399260, 110098890, 220197780]

約数ペア:

[(1, 220197780), (2, 110098890), (3, 73399260), (4, 55049445), (5, 44039556), (6, 36699630), (9, 24466420), (10, 22019778), (11, 20017980), (12, 18349815), (15, 14679852), (18, 12233210), (20, 11009889), (22, 10008990), (30, 7339926), (33, 6672660), (36, 6116605), (44, 5004495), (45, 4893284), (55, 4003596), (60, 3669963), (66, 3336330), (90, 2446642), (99, 2224220), (110, 2001798), (132, 1668165), (165, 1334532), (180, 1223321), (198, 1112110), (220, 1000899), (330, 667266), (396, 556055), (495, 444844), (660, 333633), (990, 222422), (1980, 111211)]