1981094128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{569}}^1\times {\mathrm{881}}^1$

素因数の和:1490

約数の個数: 80

約数和(自身を含む): 4363783200

約数和(自身を除く): 2382689072

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 569, 881, 988, 1138, 1762, 1976, 2276, 3524, 3952, 4552, 7048, 7397, 9104, 10811, 11453, 14096, 14794, 16739, 21622, 22906, 29588, 33478, 43244, 45812, 59176, 66956, 86488, 91624, 118352, 133912, 140543, 172976, 183248, 217607, 267824, 281086, 435214, 501289, 562172, 870428, 1002578, 1124344, 1740856, 2005156, 2248688, 3481712, 4010312, 6516757, 8020624, 9524491, 13033514, 19048982, 26067028, 38097964, 52134056, 76195928, 104268112, 123818383, 152391856, 247636766, 495273532, 990547064, 1981094128]

約数ペア:

[(1, 1981094128), (2, 990547064), (4, 495273532), (8, 247636766), (13, 152391856), (16, 123818383), (19, 104268112), (26, 76195928), (38, 52134056), (52, 38097964), (76, 26067028), (104, 19048982), (152, 13033514), (208, 9524491), (247, 8020624), (304, 6516757), (494, 4010312), (569, 3481712), (881, 2248688), (988, 2005156), (1138, 1740856), (1762, 1124344), (1976, 1002578), (2276, 870428), (3524, 562172), (3952, 501289), (4552, 435214), (7048, 281086), (7397, 267824), (9104, 217607), (10811, 183248), (11453, 172976), (14096, 140543), (14794, 133912), (16739, 118352), (21622, 91624), (22906, 86488), (29588, 66956), (33478, 59176), (43244, 45812)]