208048720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{13907}}^1$

素因数の和:13948

約数の個数: 80

約数和(自身を含む): 558767808

約数和(自身を除く): 350719088

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 2992, 3740, 7480, 13907, 14960, 27814, 55628, 69535, 111256, 139070, 152977, 222512, 236419, 278140, 305954, 472838, 556280, 611908, 764885, 945676, 1112560, 1182095, 1223816, 1529770, 1891352, 2364190, 2447632, 2600609, 3059540, 3782704, 4728380, 5201218, 6119080, 9456760, 10402436, 12238160, 13003045, 18913520, 20804872, 26006090, 41609744, 52012180, 104024360, 208048720]

約数ペア:

[(1, 208048720), (2, 104024360), (4, 52012180), (5, 41609744), (8, 26006090), (10, 20804872), (11, 18913520), (16, 13003045), (17, 12238160), (20, 10402436), (22, 9456760), (34, 6119080), (40, 5201218), (44, 4728380), (55, 3782704), (68, 3059540), (80, 2600609), (85, 2447632), (88, 2364190), (110, 1891352), (136, 1529770), (170, 1223816), (176, 1182095), (187, 1112560), (220, 945676), (272, 764885), (340, 611908), (374, 556280), (440, 472838), (680, 305954), (748, 278140), (880, 236419), (935, 222512), (1360, 152977), (1496, 139070), (1870, 111256), (2992, 69535), (3740, 55628), (7480, 27814), (13907, 14960)]