20806950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:238

約数の個数: 96

約数和(自身を含む): 55639296

約数和(自身を除く): 34832346

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 25, 30, 37, 46, 50, 69, 74, 75, 111, 115, 138, 150, 163, 185, 222, 230, 326, 345, 370, 489, 555, 575, 690, 815, 851, 925, 978, 1110, 1150, 1630, 1702, 1725, 1850, 2445, 2553, 2775, 3450, 3749, 4075, 4255, 4890, 5106, 5550, 6031, 7498, 8150, 8510, 11247, 12062, 12225, 12765, 18093, 18745, 21275, 22494, 24450, 25530, 30155, 36186, 37490, 42550, 56235, 60310, 63825, 90465, 93725, 112470, 127650, 138713, 150775, 180930, 187450, 277426, 281175, 301550, 416139, 452325, 562350, 693565, 832278, 904650, 1387130, 2080695, 3467825, 4161390, 6935650, 10403475, 20806950]

約数ペア:

[(1, 20806950), (2, 10403475), (3, 6935650), (5, 4161390), (6, 3467825), (10, 2080695), (15, 1387130), (23, 904650), (25, 832278), (30, 693565), (37, 562350), (46, 452325), (50, 416139), (69, 301550), (74, 281175), (75, 277426), (111, 187450), (115, 180930), (138, 150775), (150, 138713), (163, 127650), (185, 112470), (222, 93725), (230, 90465), (326, 63825), (345, 60310), (370, 56235), (489, 42550), (555, 37490), (575, 36186), (690, 30155), (815, 25530), (851, 24450), (925, 22494), (978, 21275), (1110, 18745), (1150, 18093), (1630, 12765), (1702, 12225), (1725, 12062), (1850, 11247), (2445, 8510), (2553, 8150), (2775, 7498), (3450, 6031), (3749, 5550), (4075, 5106), (4255, 4890)]