12946840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:292

約数の個数: 64

約数和(自身を含む): 30792960

約数和(自身を除く): 17846120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 197, 212, 248, 265, 310, 394, 424, 530, 620, 788, 985, 1060, 1240, 1576, 1643, 1970, 2120, 3286, 3940, 6107, 6572, 7880, 8215, 10441, 12214, 13144, 16430, 20882, 24428, 30535, 32860, 41764, 48856, 52205, 61070, 65720, 83528, 104410, 122140, 208820, 244280, 323671, 417640, 647342, 1294684, 1618355, 2589368, 3236710, 6473420, 12946840]

約数ペア:

[(1, 12946840), (2, 6473420), (4, 3236710), (5, 2589368), (8, 1618355), (10, 1294684), (20, 647342), (31, 417640), (40, 323671), (53, 244280), (62, 208820), (106, 122140), (124, 104410), (155, 83528), (197, 65720), (212, 61070), (248, 52205), (265, 48856), (310, 41764), (394, 32860), (424, 30535), (530, 24428), (620, 20882), (788, 16430), (985, 13144), (1060, 12214), (1240, 10441), (1576, 8215), (1643, 7880), (1970, 6572), (2120, 6107), (3286, 3940)]