30507280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:256

約数の個数: 80

約数和(自身を含む): 74245248

約数和(自身を除く): 43737968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 71, 80, 82, 131, 142, 164, 205, 262, 284, 328, 355, 410, 524, 568, 655, 656, 710, 820, 1048, 1136, 1310, 1420, 1640, 2096, 2620, 2840, 2911, 3280, 5240, 5371, 5680, 5822, 9301, 10480, 10742, 11644, 14555, 18602, 21484, 23288, 26855, 29110, 37204, 42968, 46505, 46576, 53710, 58220, 74408, 85936, 93010, 107420, 116440, 148816, 186020, 214840, 232880, 372040, 381341, 429680, 744080, 762682, 1525364, 1906705, 3050728, 3813410, 6101456, 7626820, 15253640, 30507280]

約数ペア:

[(1, 30507280), (2, 15253640), (4, 7626820), (5, 6101456), (8, 3813410), (10, 3050728), (16, 1906705), (20, 1525364), (40, 762682), (41, 744080), (71, 429680), (80, 381341), (82, 372040), (131, 232880), (142, 214840), (164, 186020), (205, 148816), (262, 116440), (284, 107420), (328, 93010), (355, 85936), (410, 74408), (524, 58220), (568, 53710), (655, 46576), (656, 46505), (710, 42968), (820, 37204), (1048, 29110), (1136, 26855), (1310, 23288), (1420, 21484), (1640, 18602), (2096, 14555), (2620, 11644), (2840, 10742), (2911, 10480), (3280, 9301), (5240, 5822), (5371, 5680)]