257943480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{1721}}^1$

素因数の和:2984

約数の個数: 64

約数和(自身を含む): 774900000

約数和(自身を除く): 516956520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 1249, 1721, 2498, 3442, 3747, 4996, 5163, 6245, 6884, 7494, 8605, 9992, 10326, 12490, 13768, 14988, 17210, 18735, 20652, 24980, 25815, 29976, 34420, 37470, 41304, 49960, 51630, 68840, 74940, 103260, 149880, 206520, 2149529, 4299058, 6448587, 8598116, 10747645, 12897174, 17196232, 21495290, 25794348, 32242935, 42990580, 51588696, 64485870, 85981160, 128971740, 257943480]

約数ペア:

[(1, 257943480), (2, 128971740), (3, 85981160), (4, 64485870), (5, 51588696), (6, 42990580), (8, 32242935), (10, 25794348), (12, 21495290), (15, 17196232), (20, 12897174), (24, 10747645), (30, 8598116), (40, 6448587), (60, 4299058), (120, 2149529), (1249, 206520), (1721, 149880), (2498, 103260), (3442, 74940), (3747, 68840), (4996, 51630), (5163, 49960), (6245, 41304), (6884, 37470), (7494, 34420), (8605, 29976), (9992, 25815), (10326, 24980), (12490, 20652), (13768, 18735), (14988, 17210)]