206921540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:501

約数の個数: 96

約数和(自身を含む): 513838080

約数和(自身を除く): 306916540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 79, 106, 140, 158, 212, 265, 316, 353, 371, 395, 530, 553, 706, 742, 790, 1060, 1106, 1412, 1484, 1580, 1765, 1855, 2212, 2471, 2765, 3530, 3710, 4187, 4942, 5530, 7060, 7420, 8374, 9884, 11060, 12355, 16748, 18709, 20935, 24710, 27887, 29309, 37418, 41870, 49420, 55774, 58618, 74836, 83740, 93545, 111548, 117236, 130963, 139435, 146545, 187090, 195209, 261926, 278870, 293090, 374180, 390418, 523852, 557740, 586180, 654815, 780836, 976045, 1309630, 1478011, 1952090, 2619260, 2956022, 3904180, 5912044, 7390055, 10346077, 14780110, 20692154, 29560220, 41384308, 51730385, 103460770, 206921540]

約数ペア:

[(1, 206921540), (2, 103460770), (4, 51730385), (5, 41384308), (7, 29560220), (10, 20692154), (14, 14780110), (20, 10346077), (28, 7390055), (35, 5912044), (53, 3904180), (70, 2956022), (79, 2619260), (106, 1952090), (140, 1478011), (158, 1309630), (212, 976045), (265, 780836), (316, 654815), (353, 586180), (371, 557740), (395, 523852), (530, 390418), (553, 374180), (706, 293090), (742, 278870), (790, 261926), (1060, 195209), (1106, 187090), (1412, 146545), (1484, 139435), (1580, 130963), (1765, 117236), (1855, 111548), (2212, 93545), (2471, 83740), (2765, 74836), (3530, 58618), (3710, 55774), (4187, 49420), (4942, 41870), (5530, 37418), (7060, 29309), (7420, 27887), (8374, 24710), (9884, 20935), (11060, 18709), (12355, 16748)]