12478486520

素因数分解:

$2^3\times 5^1\times {\mathrm{7829}}^1\times {\mathrm{39847}}^1$

素因数の和:47687

約数の個数: 32

約数和(自身を含む): 28080885600

約数和(自身を除く): 15602399080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7829, 15658, 31316, 39145, 39847, 62632, 78290, 79694, 156580, 159388, 199235, 313160, 318776, 398470, 796940, 1593880, 311962163, 623924326, 1247848652, 1559810815, 2495697304, 3119621630, 6239243260, 12478486520]

約数ペア:

[(1, 12478486520), (2, 6239243260), (4, 3119621630), (5, 2495697304), (8, 1559810815), (10, 1247848652), (20, 623924326), (40, 311962163), (7829, 1593880), (15658, 796940), (31316, 398470), (39145, 318776), (39847, 313160), (62632, 199235), (78290, 159388), (79694, 156580)]