77978340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{39383}}^1$

素因数の和:39409

約数の個数: 72

約数和(自身を含む): 258043968

約数和(自身を除く): 180065628

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 39383, 78766, 118149, 157532, 196915, 236298, 354447, 393830, 433213, 472596, 590745, 708894, 787660, 866426, 1181490, 1299639, 1417788, 1732852, 1772235, 2166065, 2362980, 2599278, 3544470, 3898917, 4332130, 5198556, 6498195, 7088940, 7797834, 8664260, 12996390, 15595668, 19494585, 25992780, 38989170, 77978340]

約数ペア:

[(1, 77978340), (2, 38989170), (3, 25992780), (4, 19494585), (5, 15595668), (6, 12996390), (9, 8664260), (10, 7797834), (11, 7088940), (12, 6498195), (15, 5198556), (18, 4332130), (20, 3898917), (22, 3544470), (30, 2599278), (33, 2362980), (36, 2166065), (44, 1772235), (45, 1732852), (55, 1417788), (60, 1299639), (66, 1181490), (90, 866426), (99, 787660), (110, 708894), (132, 590745), (165, 472596), (180, 433213), (198, 393830), (220, 354447), (330, 236298), (396, 196915), (495, 157532), (660, 118149), (990, 78766), (1980, 39383)]