20298080

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{607}}^1$

素因数の和:652

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 34859680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 160, 176, 190, 209, 220, 304, 352, 380, 418, 440, 607, 608, 760, 836, 880, 1045, 1214, 1520, 1672, 1760, 2090, 2428, 3035, 3040, 3344, 4180, 4856, 6070, 6677, 6688, 8360, 9712, 11533, 12140, 13354, 16720, 19424, 23066, 24280, 26708, 33385, 33440, 46132, 48560, 53416, 57665, 66770, 92264, 97120, 106832, 115330, 126863, 133540, 184528, 213664, 230660, 253726, 267080, 369056, 461320, 507452, 534160, 634315, 922640, 1014904, 1068320, 1268630, 1845280, 2029808, 2537260, 4059616, 5074520, 10149040, 20298080]

約数ペア:

[(1, 20298080), (2, 10149040), (4, 5074520), (5, 4059616), (8, 2537260), (10, 2029808), (11, 1845280), (16, 1268630), (19, 1068320), (20, 1014904), (22, 922640), (32, 634315), (38, 534160), (40, 507452), (44, 461320), (55, 369056), (76, 267080), (80, 253726), (88, 230660), (95, 213664), (110, 184528), (152, 133540), (160, 126863), (176, 115330), (190, 106832), (209, 97120), (220, 92264), (304, 66770), (352, 57665), (380, 53416), (418, 48560), (440, 46132), (607, 33440), (608, 33385), (760, 26708), (836, 24280), (880, 23066), (1045, 19424), (1214, 16720), (1520, 13354), (1672, 12140), (1760, 11533), (2090, 9712), (2428, 8360), (3035, 6688), (3040, 6677), (3344, 6070), (4180, 4856)]