7815704004

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{16249}}^1$

素因数の和:16721

約数の個数: 72

約数和(自身を含む): 20442240000

約数和(自身を除く): 12626535996

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 431, 558, 862, 1116, 1293, 1724, 2586, 3879, 5172, 7758, 13361, 15516, 16249, 26722, 32498, 40083, 48747, 53444, 64996, 80166, 97494, 120249, 146241, 160332, 194988, 240498, 292482, 480996, 503719, 584964, 1007438, 1511157, 2014876, 3022314, 4533471, 6044628, 7003319, 9066942, 14006638, 18133884, 21009957, 28013276, 42019914, 63029871, 84039828, 126059742, 217102889, 252119484, 434205778, 651308667, 868411556, 1302617334, 1953926001, 2605234668, 3907852002, 7815704004]

約数ペア:

[(1, 7815704004), (2, 3907852002), (3, 2605234668), (4, 1953926001), (6, 1302617334), (9, 868411556), (12, 651308667), (18, 434205778), (31, 252119484), (36, 217102889), (62, 126059742), (93, 84039828), (124, 63029871), (186, 42019914), (279, 28013276), (372, 21009957), (431, 18133884), (558, 14006638), (862, 9066942), (1116, 7003319), (1293, 6044628), (1724, 4533471), (2586, 3022314), (3879, 2014876), (5172, 1511157), (7758, 1007438), (13361, 584964), (15516, 503719), (16249, 480996), (26722, 292482), (32498, 240498), (40083, 194988), (48747, 160332), (53444, 146241), (64996, 120249), (80166, 97494)]