20836160

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:208

約数の個数: 112

約数和(自身を含む): 54864000

約数和(自身を除く): 34027840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 32, 38, 40, 46, 64, 76, 80, 92, 95, 115, 149, 152, 160, 184, 190, 230, 298, 304, 320, 368, 380, 437, 460, 596, 608, 736, 745, 760, 874, 920, 1192, 1216, 1472, 1490, 1520, 1748, 1840, 2185, 2384, 2831, 2980, 3040, 3427, 3496, 3680, 4370, 4768, 5662, 5960, 6080, 6854, 6992, 7360, 8740, 9536, 11324, 11920, 13708, 13984, 14155, 17135, 17480, 22648, 23840, 27416, 27968, 28310, 34270, 34960, 45296, 47680, 54832, 56620, 65113, 68540, 69920, 90592, 109664, 113240, 130226, 137080, 139840, 181184, 219328, 226480, 260452, 274160, 325565, 452960, 520904, 548320, 651130, 905920, 1041808, 1096640, 1302260, 2083616, 2604520, 4167232, 5209040, 10418080, 20836160]

約数ペア:

[(1, 20836160), (2, 10418080), (4, 5209040), (5, 4167232), (8, 2604520), (10, 2083616), (16, 1302260), (19, 1096640), (20, 1041808), (23, 905920), (32, 651130), (38, 548320), (40, 520904), (46, 452960), (64, 325565), (76, 274160), (80, 260452), (92, 226480), (95, 219328), (115, 181184), (149, 139840), (152, 137080), (160, 130226), (184, 113240), (190, 109664), (230, 90592), (298, 69920), (304, 68540), (320, 65113), (368, 56620), (380, 54832), (437, 47680), (460, 45296), (596, 34960), (608, 34270), (736, 28310), (745, 27968), (760, 27416), (874, 23840), (920, 22648), (1192, 17480), (1216, 17135), (1472, 14155), (1490, 13984), (1520, 13708), (1748, 11920), (1840, 11324), (2185, 9536), (2384, 8740), (2831, 7360), (2980, 6992), (3040, 6854), (3427, 6080), (3496, 5960), (3680, 5662), (4370, 4768)]