80416980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{63823}}^1$

素因数の和:63845

約数の個数: 72

約数和(自身を含む): 278783232

約数和(自身を除く): 198366252

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 63823, 127646, 191469, 255292, 319115, 382938, 446761, 574407, 638230, 765876, 893522, 957345, 1148814, 1276460, 1340283, 1787044, 1914690, 2233805, 2297628, 2680566, 2872035, 3829380, 4020849, 4467610, 5361132, 5744070, 6701415, 8041698, 8935220, 11488140, 13402830, 16083396, 20104245, 26805660, 40208490, 80416980]

約数ペア:

[(1, 80416980), (2, 40208490), (3, 26805660), (4, 20104245), (5, 16083396), (6, 13402830), (7, 11488140), (9, 8935220), (10, 8041698), (12, 6701415), (14, 5744070), (15, 5361132), (18, 4467610), (20, 4020849), (21, 3829380), (28, 2872035), (30, 2680566), (35, 2297628), (36, 2233805), (42, 1914690), (45, 1787044), (60, 1340283), (63, 1276460), (70, 1148814), (84, 957345), (90, 893522), (105, 765876), (126, 638230), (140, 574407), (180, 446761), (210, 382938), (252, 319115), (315, 255292), (420, 191469), (630, 127646), (1260, 63823)]