19437760

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:198

約数の個数: 112

約数和(自身を含む): 51206400

約数和(自身を除く): 31768640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 32, 38, 40, 46, 64, 76, 80, 92, 95, 115, 139, 152, 160, 184, 190, 230, 278, 304, 320, 368, 380, 437, 460, 556, 608, 695, 736, 760, 874, 920, 1112, 1216, 1390, 1472, 1520, 1748, 1840, 2185, 2224, 2641, 2780, 3040, 3197, 3496, 3680, 4370, 4448, 5282, 5560, 6080, 6394, 6992, 7360, 8740, 8896, 10564, 11120, 12788, 13205, 13984, 15985, 17480, 21128, 22240, 25576, 26410, 27968, 31970, 34960, 42256, 44480, 51152, 52820, 60743, 63940, 69920, 84512, 102304, 105640, 121486, 127880, 139840, 169024, 204608, 211280, 242972, 255760, 303715, 422560, 485944, 511520, 607430, 845120, 971888, 1023040, 1214860, 1943776, 2429720, 3887552, 4859440, 9718880, 19437760]

約数ペア:

[(1, 19437760), (2, 9718880), (4, 4859440), (5, 3887552), (8, 2429720), (10, 1943776), (16, 1214860), (19, 1023040), (20, 971888), (23, 845120), (32, 607430), (38, 511520), (40, 485944), (46, 422560), (64, 303715), (76, 255760), (80, 242972), (92, 211280), (95, 204608), (115, 169024), (139, 139840), (152, 127880), (160, 121486), (184, 105640), (190, 102304), (230, 84512), (278, 69920), (304, 63940), (320, 60743), (368, 52820), (380, 51152), (437, 44480), (460, 42256), (556, 34960), (608, 31970), (695, 27968), (736, 26410), (760, 25576), (874, 22240), (920, 21128), (1112, 17480), (1216, 15985), (1390, 13984), (1472, 13205), (1520, 12788), (1748, 11120), (1840, 10564), (2185, 8896), (2224, 8740), (2641, 7360), (2780, 6992), (3040, 6394), (3197, 6080), (3496, 5560), (3680, 5282), (4370, 4448)]