389495280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{20543}}^1$

素因数の和:20638

約数の個数: 80

約数和(自身を含む): 1222778880

約数和(自身を除く): 833283600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 237, 240, 316, 395, 474, 632, 790, 948, 1185, 1264, 1580, 1896, 2370, 3160, 3792, 4740, 6320, 9480, 18960, 20543, 41086, 61629, 82172, 102715, 123258, 164344, 205430, 246516, 308145, 328688, 410860, 493032, 616290, 821720, 986064, 1232580, 1622897, 1643440, 2465160, 3245794, 4868691, 4930320, 6491588, 8114485, 9737382, 12983176, 16228970, 19474764, 24343455, 25966352, 32457940, 38949528, 48686910, 64915880, 77899056, 97373820, 129831760, 194747640, 389495280]

約数ペア:

[(1, 389495280), (2, 194747640), (3, 129831760), (4, 97373820), (5, 77899056), (6, 64915880), (8, 48686910), (10, 38949528), (12, 32457940), (15, 25966352), (16, 24343455), (20, 19474764), (24, 16228970), (30, 12983176), (40, 9737382), (48, 8114485), (60, 6491588), (79, 4930320), (80, 4868691), (120, 3245794), (158, 2465160), (237, 1643440), (240, 1622897), (316, 1232580), (395, 986064), (474, 821720), (632, 616290), (790, 493032), (948, 410860), (1185, 328688), (1264, 308145), (1580, 246516), (1896, 205430), (2370, 164344), (3160, 123258), (3792, 102715), (4740, 82172), (6320, 61629), (9480, 41086), (18960, 20543)]