68829660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{983}}^1$

素因数の和:1387

約数の個数: 72

約数和(自身を含む): 209532960

約数和(自身を除く): 140703300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 389, 778, 983, 1167, 1556, 1945, 1966, 2334, 2949, 3501, 3890, 3932, 4668, 4915, 5835, 5898, 7002, 7780, 8847, 9830, 11670, 11796, 14004, 14745, 17505, 17694, 19660, 23340, 29490, 35010, 35388, 44235, 58980, 70020, 88470, 176940, 382387, 764774, 1147161, 1529548, 1911935, 2294322, 3441483, 3823870, 4588644, 5735805, 6882966, 7647740, 11471610, 13765932, 17207415, 22943220, 34414830, 68829660]

約数ペア:

[(1, 68829660), (2, 34414830), (3, 22943220), (4, 17207415), (5, 13765932), (6, 11471610), (9, 7647740), (10, 6882966), (12, 5735805), (15, 4588644), (18, 3823870), (20, 3441483), (30, 2294322), (36, 1911935), (45, 1529548), (60, 1147161), (90, 764774), (180, 382387), (389, 176940), (778, 88470), (983, 70020), (1167, 58980), (1556, 44235), (1945, 35388), (1966, 35010), (2334, 29490), (2949, 23340), (3501, 19660), (3890, 17694), (3932, 17505), (4668, 14745), (4915, 14004), (5835, 11796), (5898, 11670), (7002, 9830), (7780, 8847)]