640898088

素因数分解:

$2^3\times 3^1\times {\mathrm{331}}^1\times {\mathrm{80677}}^1$

素因数の和:81017

約数の個数: 32

約数和(自身を含む): 1607105760

約数和(自身を除く): 966207672

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 331, 662, 993, 1324, 1986, 2648, 3972, 7944, 80677, 161354, 242031, 322708, 484062, 645416, 968124, 1936248, 26704087, 53408174, 80112261, 106816348, 160224522, 213632696, 320449044, 640898088]

約数ペア:

[(1, 640898088), (2, 320449044), (3, 213632696), (4, 160224522), (6, 106816348), (8, 80112261), (12, 53408174), (24, 26704087), (331, 1936248), (662, 968124), (993, 645416), (1324, 484062), (1986, 322708), (2648, 242031), (3972, 161354), (7944, 80677)]