320102775

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1579}}^1$

素因数の和:1665

約数の個数: 72

約数和(自身を含む): 618911280

約数和(自身を除く): 298808505

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 53, 75, 85, 153, 159, 225, 255, 265, 425, 477, 765, 795, 901, 1275, 1325, 1579, 2385, 2703, 3825, 3975, 4505, 4737, 7895, 8109, 11925, 13515, 14211, 22525, 23685, 26843, 39475, 40545, 67575, 71055, 80529, 83687, 118425, 134215, 202725, 241587, 251061, 355275, 402645, 418435, 671075, 753183, 1207935, 1255305, 1422679, 2013225, 2092175, 3765915, 4268037, 6039675, 6276525, 7113395, 12804111, 18829575, 21340185, 35566975, 64020555, 106700925, 320102775]

約数ペア:

[(1, 320102775), (3, 106700925), (5, 64020555), (9, 35566975), (15, 21340185), (17, 18829575), (25, 12804111), (45, 7113395), (51, 6276525), (53, 6039675), (75, 4268037), (85, 3765915), (153, 2092175), (159, 2013225), (225, 1422679), (255, 1255305), (265, 1207935), (425, 753183), (477, 671075), (765, 418435), (795, 402645), (901, 355275), (1275, 251061), (1325, 241587), (1579, 202725), (2385, 134215), (2703, 118425), (3825, 83687), (3975, 80529), (4505, 71055), (4737, 67575), (7895, 40545), (8109, 39475), (11925, 26843), (13515, 23685), (14211, 22525)]