20706960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{239}}^1$

素因数の和:293

約数の個数: 120

約数和(自身を含む): 68031360

約数和(自身を除く): 47324400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 239, 240, 285, 304, 361, 380, 456, 478, 570, 717, 722, 760, 912, 956, 1083, 1140, 1195, 1434, 1444, 1520, 1805, 1912, 2166, 2280, 2390, 2868, 2888, 3585, 3610, 3824, 4332, 4541, 4560, 4780, 5415, 5736, 5776, 7170, 7220, 8664, 9082, 9560, 10830, 11472, 13623, 14340, 14440, 17328, 18164, 19120, 21660, 22705, 27246, 28680, 28880, 36328, 43320, 45410, 54492, 57360, 68115, 72656, 86279, 86640, 90820, 108984, 136230, 172558, 181640, 217968, 258837, 272460, 345116, 363280, 431395, 517674, 544920, 690232, 862790, 1035348, 1089840, 1294185, 1380464, 1725580, 2070696, 2588370, 3451160, 4141392, 5176740, 6902320, 10353480, 20706960]

約数ペア:

[(1, 20706960), (2, 10353480), (3, 6902320), (4, 5176740), (5, 4141392), (6, 3451160), (8, 2588370), (10, 2070696), (12, 1725580), (15, 1380464), (16, 1294185), (19, 1089840), (20, 1035348), (24, 862790), (30, 690232), (38, 544920), (40, 517674), (48, 431395), (57, 363280), (60, 345116), (76, 272460), (80, 258837), (95, 217968), (114, 181640), (120, 172558), (152, 136230), (190, 108984), (228, 90820), (239, 86640), (240, 86279), (285, 72656), (304, 68115), (361, 57360), (380, 54492), (456, 45410), (478, 43320), (570, 36328), (717, 28880), (722, 28680), (760, 27246), (912, 22705), (956, 21660), (1083, 19120), (1140, 18164), (1195, 17328), (1434, 14440), (1444, 14340), (1520, 13623), (1805, 11472), (1912, 10830), (2166, 9560), (2280, 9082), (2390, 8664), (2868, 7220), (2888, 7170), (3585, 5776), (3610, 5736), (3824, 5415), (4332, 4780), (4541, 4560)]