20173604920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1483}}^1\times {\mathrm{2557}}^1$

素因数の和:4077

約数の個数: 128

約数和(自身を含む): 54663436800

約数和(自身を除く): 34489831880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 1483, 2557, 2660, 2966, 5114, 5320, 5932, 7415, 10228, 10381, 11864, 12785, 14830, 17899, 20456, 20762, 25570, 28177, 29660, 35798, 41524, 48583, 51140, 51905, 56354, 59320, 71596, 83048, 89495, 97166, 102280, 103810, 112708, 140885, 143192, 178990, 194332, 197239, 207620, 225416, 242915, 281770, 340081, 357980, 388664, 394478, 415240, 485830, 563540, 680162, 715960, 788956, 971660, 986195, 1127080, 1360324, 1577912, 1700405, 1943320, 1972390, 2720648, 3400810, 3792031, 3944780, 6801620, 7584062, 7889560, 13603240, 15168124, 18960155, 26544217, 30336248, 37920310, 53088434, 72048589, 75840620, 106176868, 132721085, 144097178, 151681240, 212353736, 265442170, 288194356, 360242945, 504340123, 530884340, 576388712, 720485890, 1008680246, 1061768680, 1440971780, 2017360492, 2521700615, 2881943560, 4034720984, 5043401230, 10086802460, 20173604920]

約数ペア:

[(1, 20173604920), (2, 10086802460), (4, 5043401230), (5, 4034720984), (7, 2881943560), (8, 2521700615), (10, 2017360492), (14, 1440971780), (19, 1061768680), (20, 1008680246), (28, 720485890), (35, 576388712), (38, 530884340), (40, 504340123), (56, 360242945), (70, 288194356), (76, 265442170), (95, 212353736), (133, 151681240), (140, 144097178), (152, 132721085), (190, 106176868), (266, 75840620), (280, 72048589), (380, 53088434), (532, 37920310), (665, 30336248), (760, 26544217), (1064, 18960155), (1330, 15168124), (1483, 13603240), (2557, 7889560), (2660, 7584062), (2966, 6801620), (5114, 3944780), (5320, 3792031), (5932, 3400810), (7415, 2720648), (10228, 1972390), (10381, 1943320), (11864, 1700405), (12785, 1577912), (14830, 1360324), (17899, 1127080), (20456, 986195), (20762, 971660), (25570, 788956), (28177, 715960), (29660, 680162), (35798, 563540), (41524, 485830), (48583, 415240), (51140, 394478), (51905, 388664), (56354, 357980), (59320, 340081), (71596, 281770), (83048, 242915), (89495, 225416), (97166, 207620), (102280, 197239), (103810, 194332), (112708, 178990), (140885, 143192)]