1644761985

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{929}}^1$

素因数の和:1138

約数の個数: 64

約数和(自身を含む): 2863745280

約数和(自身を除く): 1218983295

約数列:

[1, 3, 5, 15, 17, 51, 53, 85, 131, 159, 255, 265, 393, 655, 795, 901, 929, 1965, 2227, 2703, 2787, 4505, 4645, 6681, 6943, 11135, 13515, 13935, 15793, 20829, 33405, 34715, 47379, 49237, 78965, 104145, 118031, 121699, 147711, 236895, 246185, 354093, 365097, 590155, 608495, 738555, 837029, 1770465, 1825485, 2068883, 2511087, 4185145, 6206649, 6450047, 10344415, 12555435, 19350141, 31033245, 32250235, 96750705, 109650799, 328952397, 548253995, 1644761985]

約数ペア:

[(1, 1644761985), (3, 548253995), (5, 328952397), (15, 109650799), (17, 96750705), (51, 32250235), (53, 31033245), (85, 19350141), (131, 12555435), (159, 10344415), (255, 6450047), (265, 6206649), (393, 4185145), (655, 2511087), (795, 2068883), (901, 1825485), (929, 1770465), (1965, 837029), (2227, 738555), (2703, 608495), (2787, 590155), (4505, 365097), (4645, 354093), (6681, 246185), (6943, 236895), (11135, 147711), (13515, 121699), (13935, 118031), (15793, 104145), (20829, 78965), (33405, 49237), (34715, 47379)]