20784744720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{157747}}^1$

素因数の和:157830

約数の個数: 160

約数和(自身を含む): 72765997440

約数和(自身を除く): 51981252720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 61, 72, 80, 90, 108, 120, 122, 135, 144, 180, 183, 216, 240, 244, 270, 305, 360, 366, 432, 488, 540, 549, 610, 720, 732, 915, 976, 1080, 1098, 1220, 1464, 1647, 1830, 2160, 2196, 2440, 2745, 2928, 3294, 3660, 4392, 4880, 5490, 6588, 7320, 8235, 8784, 10980, 13176, 14640, 16470, 21960, 26352, 32940, 43920, 65880, 131760, 157747, 315494, 473241, 630988, 788735, 946482, 1261976, 1419723, 1577470, 1892964, 2366205, 2523952, 2839446, 3154940, 3785928, 4259169, 4732410, 5678892, 6309880, 7098615, 7571856, 8518338, 9464820, 9622567, 11357784, 12619760, 14197230, 17036676, 18929640, 19245134, 21295845, 22715568, 28394460, 28867701, 34073352, 37859280, 38490268, 42591690, 48112835, 56788920, 57735402, 68146704, 76980536, 85183380, 86603103, 96225670, 113577840, 115470804, 144338505, 153961072, 170366760, 173206206, 192451340, 230941608, 259809309, 288677010, 340733520, 346412412, 384902680, 433015515, 461883216, 519618618, 577354020, 692824824, 769805360, 866031030, 1039237236, 1154708040, 1299046545, 1385649648, 1732062060, 2078474472, 2309416080, 2598093090, 3464124120, 4156948944, 5196186180, 6928248240, 10392372360, 20784744720]

約数ペア:

[(1, 20784744720), (2, 10392372360), (3, 6928248240), (4, 5196186180), (5, 4156948944), (6, 3464124120), (8, 2598093090), (9, 2309416080), (10, 2078474472), (12, 1732062060), (15, 1385649648), (16, 1299046545), (18, 1154708040), (20, 1039237236), (24, 866031030), (27, 769805360), (30, 692824824), (36, 577354020), (40, 519618618), (45, 461883216), (48, 433015515), (54, 384902680), (60, 346412412), (61, 340733520), (72, 288677010), (80, 259809309), (90, 230941608), (108, 192451340), (120, 173206206), (122, 170366760), (135, 153961072), (144, 144338505), (180, 115470804), (183, 113577840), (216, 96225670), (240, 86603103), (244, 85183380), (270, 76980536), (305, 68146704), (360, 57735402), (366, 56788920), (432, 48112835), (488, 42591690), (540, 38490268), (549, 37859280), (610, 34073352), (720, 28867701), (732, 28394460), (915, 22715568), (976, 21295845), (1080, 19245134), (1098, 18929640), (1220, 17036676), (1464, 14197230), (1647, 12619760), (1830, 11357784), (2160, 9622567), (2196, 9464820), (2440, 8518338), (2745, 7571856), (2928, 7098615), (3294, 6309880), (3660, 5678892), (4392, 4732410), (4880, 4259169), (5490, 3785928), (6588, 3154940), (7320, 2839446), (8235, 2523952), (8784, 2366205), (10980, 1892964), (13176, 1577470), (14640, 1419723), (16470, 1261976), (21960, 946482), (26352, 788735), (32940, 630988), (43920, 473241), (65880, 315494), (131760, 157747)]