643464

素因数分解:

$2^3\times 3^5\times {\mathrm{331}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 1812720

約数和(自身を除く): 1169256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 331, 486, 648, 662, 972, 993, 1324, 1944, 1986, 2648, 2979, 3972, 5958, 7944, 8937, 11916, 17874, 23832, 26811, 35748, 53622, 71496, 80433, 107244, 160866, 214488, 321732, 643464]

約数ペア:

[(1, 643464), (2, 321732), (3, 214488), (4, 160866), (6, 107244), (8, 80433), (9, 71496), (12, 53622), (18, 35748), (24, 26811), (27, 23832), (36, 17874), (54, 11916), (72, 8937), (81, 7944), (108, 5958), (162, 3972), (216, 2979), (243, 2648), (324, 1986), (331, 1944), (486, 1324), (648, 993), (662, 972)]