648990090

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{343381}}^1$

素因数の和:343404

約数の個数: 64

約数和(自身を含む): 1977880320

約数和(自身を除く): 1328890230

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 343381, 686762, 1030143, 1716905, 2060286, 2403667, 3090429, 3433810, 4807334, 5150715, 6180858, 7211001, 9271287, 10301430, 12018335, 14422002, 15452145, 18542574, 21633003, 24036670, 30904290, 36055005, 43266006, 46356435, 64899009, 72110010, 92712870, 108165015, 129798018, 216330030, 324495045, 648990090]

約数ペア:

[(1, 648990090), (2, 324495045), (3, 216330030), (5, 129798018), (6, 108165015), (7, 92712870), (9, 72110010), (10, 64899009), (14, 46356435), (15, 43266006), (18, 36055005), (21, 30904290), (27, 24036670), (30, 21633003), (35, 18542574), (42, 15452145), (45, 14422002), (54, 12018335), (63, 10301430), (70, 9271287), (90, 7211001), (105, 6180858), (126, 5150715), (135, 4807334), (189, 3433810), (210, 3090429), (270, 2403667), (315, 2060286), (378, 1716905), (630, 1030143), (945, 686762), (1890, 343381)]