20187306040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{331}}^1\times {\mathrm{12601}}^1$

素因数の和:12965

約数の個数: 96

約数和(自身を含む): 50080852080

約数和(自身を除く): 29893546040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 331, 440, 484, 605, 662, 968, 1210, 1324, 1655, 2420, 2648, 3310, 3641, 4840, 6620, 7282, 12601, 13240, 14564, 18205, 25202, 29128, 36410, 40051, 50404, 63005, 72820, 80102, 100808, 126010, 138611, 145640, 160204, 200255, 252020, 277222, 320408, 400510, 504040, 554444, 693055, 801020, 1108888, 1386110, 1524721, 1602040, 2772220, 3049442, 4170931, 5544440, 6098884, 7623605, 8341862, 12197768, 15247210, 16683724, 20854655, 30494420, 33367448, 41709310, 45880241, 60988840, 83418620, 91760482, 166837240, 183520964, 229401205, 367041928, 458802410, 504682651, 917604820, 1009365302, 1835209640, 2018730604, 2523413255, 4037461208, 5046826510, 10093653020, 20187306040]

約数ペア:

[(1, 20187306040), (2, 10093653020), (4, 5046826510), (5, 4037461208), (8, 2523413255), (10, 2018730604), (11, 1835209640), (20, 1009365302), (22, 917604820), (40, 504682651), (44, 458802410), (55, 367041928), (88, 229401205), (110, 183520964), (121, 166837240), (220, 91760482), (242, 83418620), (331, 60988840), (440, 45880241), (484, 41709310), (605, 33367448), (662, 30494420), (968, 20854655), (1210, 16683724), (1324, 15247210), (1655, 12197768), (2420, 8341862), (2648, 7623605), (3310, 6098884), (3641, 5544440), (4840, 4170931), (6620, 3049442), (7282, 2772220), (12601, 1602040), (13240, 1524721), (14564, 1386110), (18205, 1108888), (25202, 801020), (29128, 693055), (36410, 554444), (40051, 504040), (50404, 400510), (63005, 320408), (72820, 277222), (80102, 252020), (100808, 200255), (126010, 160204), (138611, 145640)]