311492080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{2029}}^1$

素因数の和:2162

約数の個数: 80

約数和(自身を含む): 770263200

約数和(自身を除く): 458771120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 101, 152, 190, 202, 304, 380, 404, 505, 760, 808, 1010, 1520, 1616, 1919, 2020, 2029, 3838, 4040, 4058, 7676, 8080, 8116, 9595, 10145, 15352, 16232, 19190, 20290, 30704, 32464, 38380, 38551, 40580, 76760, 77102, 81160, 153520, 154204, 162320, 192755, 204929, 308408, 385510, 409858, 616816, 771020, 819716, 1024645, 1542040, 1639432, 2049290, 3084080, 3278864, 3893651, 4098580, 7787302, 8197160, 15574604, 16394320, 19468255, 31149208, 38936510, 62298416, 77873020, 155746040, 311492080]

約数ペア:

[(1, 311492080), (2, 155746040), (4, 77873020), (5, 62298416), (8, 38936510), (10, 31149208), (16, 19468255), (19, 16394320), (20, 15574604), (38, 8197160), (40, 7787302), (76, 4098580), (80, 3893651), (95, 3278864), (101, 3084080), (152, 2049290), (190, 1639432), (202, 1542040), (304, 1024645), (380, 819716), (404, 771020), (505, 616816), (760, 409858), (808, 385510), (1010, 308408), (1520, 204929), (1616, 192755), (1919, 162320), (2020, 154204), (2029, 153520), (3838, 81160), (4040, 77102), (4058, 76760), (7676, 40580), (8080, 38551), (8116, 38380), (9595, 32464), (10145, 30704), (15352, 20290), (16232, 19190)]