87881500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{211}}^1$

素因数の和:261

約数の個数: 144

約数和(自身を含む): 237523104

約数和(自身を除く): 149641604

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 49, 50, 68, 70, 85, 98, 100, 119, 125, 140, 170, 175, 196, 211, 238, 245, 250, 340, 350, 422, 425, 476, 490, 500, 595, 700, 833, 844, 850, 875, 980, 1055, 1190, 1225, 1477, 1666, 1700, 1750, 2110, 2125, 2380, 2450, 2954, 2975, 3332, 3500, 3587, 4165, 4220, 4250, 4900, 5275, 5908, 5950, 6125, 7174, 7385, 8330, 8500, 10339, 10550, 11900, 12250, 14348, 14770, 14875, 16660, 17935, 20678, 20825, 21100, 24500, 25109, 26375, 29540, 29750, 35870, 36925, 41356, 41650, 50218, 51695, 52750, 59500, 71740, 73850, 83300, 89675, 100436, 103390, 104125, 105500, 125545, 147700, 175763, 179350, 184625, 206780, 208250, 251090, 258475, 351526, 358700, 369250, 416500, 448375, 502180, 516950, 627725, 703052, 738500, 878815, 896750, 1033900, 1255450, 1292375, 1757630, 1793500, 2510900, 2584750, 3138625, 3515260, 4394075, 5169500, 6277250, 8788150, 12554500, 17576300, 21970375, 43940750, 87881500]

約数ペア:

[(1, 87881500), (2, 43940750), (4, 21970375), (5, 17576300), (7, 12554500), (10, 8788150), (14, 6277250), (17, 5169500), (20, 4394075), (25, 3515260), (28, 3138625), (34, 2584750), (35, 2510900), (49, 1793500), (50, 1757630), (68, 1292375), (70, 1255450), (85, 1033900), (98, 896750), (100, 878815), (119, 738500), (125, 703052), (140, 627725), (170, 516950), (175, 502180), (196, 448375), (211, 416500), (238, 369250), (245, 358700), (250, 351526), (340, 258475), (350, 251090), (422, 208250), (425, 206780), (476, 184625), (490, 179350), (500, 175763), (595, 147700), (700, 125545), (833, 105500), (844, 104125), (850, 103390), (875, 100436), (980, 89675), (1055, 83300), (1190, 73850), (1225, 71740), (1477, 59500), (1666, 52750), (1700, 51695), (1750, 50218), (2110, 41650), (2125, 41356), (2380, 36925), (2450, 35870), (2954, 29750), (2975, 29540), (3332, 26375), (3500, 25109), (3587, 24500), (4165, 21100), (4220, 20825), (4250, 20678), (4900, 17935), (5275, 16660), (5908, 14875), (5950, 14770), (6125, 14348), (7174, 12250), (7385, 11900), (8330, 10550), (8500, 10339)]