640707132

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:456

約数の個数: 144

約数和(自身を含む): 1758769152

約数和(自身を除く): 1118062020

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 31, 38, 39, 52, 57, 62, 76, 78, 93, 114, 124, 156, 186, 228, 247, 361, 367, 372, 403, 494, 589, 722, 734, 741, 806, 988, 1083, 1101, 1178, 1209, 1444, 1468, 1482, 1612, 1767, 2166, 2202, 2356, 2418, 2964, 3534, 4332, 4404, 4693, 4771, 4836, 6973, 7068, 7657, 9386, 9542, 11191, 11377, 13946, 14079, 14313, 15314, 18772, 19084, 20919, 22382, 22754, 22971, 27892, 28158, 28626, 30628, 33573, 34131, 41838, 44764, 45508, 45942, 56316, 57252, 67146, 68262, 83676, 90649, 91884, 132487, 134292, 136524, 145483, 147901, 181298, 216163, 264974, 271947, 290966, 295802, 362596, 397461, 432326, 436449, 443703, 529948, 543894, 581932, 591604, 648489, 794922, 864652, 872898, 887406, 1087788, 1296978, 1589844, 1722331, 1745796, 1774812, 2593956, 2810119, 3444662, 4107097, 5166993, 5620238, 6889324, 8214194, 8430357, 10333986, 11240476, 12321291, 16428388, 16860714, 20667972, 24642582, 33721428, 49285164, 53392261, 106784522, 160176783, 213569044, 320353566, 640707132]

約数ペア:

[(1, 640707132), (2, 320353566), (3, 213569044), (4, 160176783), (6, 106784522), (12, 53392261), (13, 49285164), (19, 33721428), (26, 24642582), (31, 20667972), (38, 16860714), (39, 16428388), (52, 12321291), (57, 11240476), (62, 10333986), (76, 8430357), (78, 8214194), (93, 6889324), (114, 5620238), (124, 5166993), (156, 4107097), (186, 3444662), (228, 2810119), (247, 2593956), (361, 1774812), (367, 1745796), (372, 1722331), (403, 1589844), (494, 1296978), (589, 1087788), (722, 887406), (734, 872898), (741, 864652), (806, 794922), (988, 648489), (1083, 591604), (1101, 581932), (1178, 543894), (1209, 529948), (1444, 443703), (1468, 436449), (1482, 432326), (1612, 397461), (1767, 362596), (2166, 295802), (2202, 290966), (2356, 271947), (2418, 264974), (2964, 216163), (3534, 181298), (4332, 147901), (4404, 145483), (4693, 136524), (4771, 134292), (4836, 132487), (6973, 91884), (7068, 90649), (7657, 83676), (9386, 68262), (9542, 67146), (11191, 57252), (11377, 56316), (13946, 45942), (14079, 45508), (14313, 44764), (15314, 41838), (18772, 34131), (19084, 33573), (20919, 30628), (22382, 28626), (22754, 28158), (22971, 27892)]