305708980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1\times {\mathrm{1301}}^1$

素因数の和:1720

約数の個数: 48

約数和(自身を含む): 664957440

約数和(自身を除く): 359248460

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 379, 620, 758, 1301, 1516, 1895, 2602, 3790, 5204, 6505, 7580, 11749, 13010, 23498, 26020, 40331, 46996, 58745, 80662, 117490, 161324, 201655, 234980, 403310, 493079, 806620, 986158, 1972316, 2465395, 4930790, 9861580, 15285449, 30570898, 61141796, 76427245, 152854490, 305708980]

約数ペア:

[(1, 305708980), (2, 152854490), (4, 76427245), (5, 61141796), (10, 30570898), (20, 15285449), (31, 9861580), (62, 4930790), (124, 2465395), (155, 1972316), (310, 986158), (379, 806620), (620, 493079), (758, 403310), (1301, 234980), (1516, 201655), (1895, 161324), (2602, 117490), (3790, 80662), (5204, 58745), (6505, 46996), (7580, 40331), (11749, 26020), (13010, 23498)]