138880620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{24889}}^1$

素因数の和:24935

約数の個数: 72

約数和(自身を含む): 434878080

約数和(自身を除く): 295997460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 24889, 49778, 74667, 99556, 124445, 149334, 224001, 248890, 298668, 373335, 448002, 497780, 746670, 771559, 896004, 1120005, 1493340, 1543118, 2240010, 2314677, 3086236, 3857795, 4480020, 4629354, 6944031, 7715590, 9258708, 11573385, 13888062, 15431180, 23146770, 27776124, 34720155, 46293540, 69440310, 138880620]

約数ペア:

[(1, 138880620), (2, 69440310), (3, 46293540), (4, 34720155), (5, 27776124), (6, 23146770), (9, 15431180), (10, 13888062), (12, 11573385), (15, 9258708), (18, 7715590), (20, 6944031), (30, 4629354), (31, 4480020), (36, 3857795), (45, 3086236), (60, 2314677), (62, 2240010), (90, 1543118), (93, 1493340), (124, 1120005), (155, 896004), (180, 771559), (186, 746670), (279, 497780), (310, 448002), (372, 373335), (465, 298668), (558, 248890), (620, 224001), (930, 149334), (1116, 124445), (1395, 99556), (1860, 74667), (2790, 49778), (5580, 24889)]