1971293580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{2557}}^1\times {\mathrm{4283}}^1$

素因数の和:6855

約数の個数: 72

約数和(自身を含む): 5983325712

約数和(自身を除く): 4012032132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 2557, 4283, 5114, 7671, 8566, 10228, 12785, 12849, 15342, 17132, 21415, 23013, 25570, 25698, 30684, 38355, 38547, 42830, 46026, 51140, 51396, 64245, 76710, 77094, 85660, 92052, 115065, 128490, 153420, 154188, 192735, 230130, 256980, 385470, 460260, 770940, 10951631, 21903262, 32854893, 43806524, 54758155, 65709786, 98564679, 109516310, 131419572, 164274465, 197129358, 219032620, 328548930, 394258716, 492823395, 657097860, 985646790, 1971293580]

約数ペア:

[(1, 1971293580), (2, 985646790), (3, 657097860), (4, 492823395), (5, 394258716), (6, 328548930), (9, 219032620), (10, 197129358), (12, 164274465), (15, 131419572), (18, 109516310), (20, 98564679), (30, 65709786), (36, 54758155), (45, 43806524), (60, 32854893), (90, 21903262), (180, 10951631), (2557, 770940), (4283, 460260), (5114, 385470), (7671, 256980), (8566, 230130), (10228, 192735), (12785, 154188), (12849, 153420), (15342, 128490), (17132, 115065), (21415, 92052), (23013, 85660), (25570, 77094), (25698, 76710), (30684, 64245), (38355, 51396), (38547, 51140), (42830, 46026)]