1640154725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{1009}}^1$

素因数の和:1310

約数の個数: 48

約数和(自身を含む): 2326458240

約数和(自身を除く): 686303515

約数列:

[1, 5, 11, 23, 25, 55, 115, 253, 257, 275, 575, 1009, 1265, 1285, 2827, 5045, 5911, 6325, 6425, 11099, 14135, 23207, 25225, 29555, 55495, 65021, 70675, 116035, 147775, 255277, 259313, 277475, 325105, 580175, 1276385, 1296565, 1625525, 2852443, 5964199, 6381925, 6482825, 14262215, 29820995, 65606189, 71311075, 149104975, 328030945, 1640154725]

約数ペア:

[(1, 1640154725), (5, 328030945), (11, 149104975), (23, 71311075), (25, 65606189), (55, 29820995), (115, 14262215), (253, 6482825), (257, 6381925), (275, 5964199), (575, 2852443), (1009, 1625525), (1265, 1296565), (1285, 1276385), (2827, 580175), (5045, 325105), (5911, 277475), (6325, 259313), (6425, 255277), (11099, 147775), (14135, 116035), (23207, 70675), (25225, 65021), (29555, 55495)]