15253640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 35925120

約数和(自身を除く): 20671480

約数列:

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

約数ペア:

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