20185191880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1033}}^1\times {\mathrm{3673}}^1$

素因数の和:4743

約数の個数: 128

約数和(自身を含む): 54704390400

約数和(自身を除く): 34519198520

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, 1033, 1064, 1330, 2066, 2660, 3673, 4132, 5165, 5320, 7231, 7346, 8264, 10330, 14462, 14692, 18365, 19627, 20660, 25711, 28924, 29384, 36155, 36730, 39254, 41320, 51422, 57848, 69787, 72310, 73460, 78508, 98135, 102844, 128555, 137389, 139574, 144620, 146920, 157016, 196270, 205688, 257110, 274778, 279148, 289240, 348935, 392540, 488509, 514220, 549556, 558296, 686945, 697870, 785080, 977018, 1028440, 1099112, 1373890, 1395740, 1954036, 2442545, 2747780, 2791480, 3794209, 3908072, 4885090, 5495560, 7588418, 9770180, 15176836, 18971045, 19540360, 26559463, 30353672, 37942090, 53118926, 72089971, 75884180, 106237852, 132797315, 144179942, 151768360, 212475704, 265594630, 288359884, 360449855, 504629797, 531189260, 576719768, 720899710, 1009259594, 1062378520, 1441799420, 2018519188, 2523148985, 2883598840, 4037038376, 5046297970, 10092595940, 20185191880]

約数ペア:

[(1, 20185191880), (2, 10092595940), (4, 5046297970), (5, 4037038376), (7, 2883598840), (8, 2523148985), (10, 2018519188), (14, 1441799420), (19, 1062378520), (20, 1009259594), (28, 720899710), (35, 576719768), (38, 531189260), (40, 504629797), (56, 360449855), (70, 288359884), (76, 265594630), (95, 212475704), (133, 151768360), (140, 144179942), (152, 132797315), (190, 106237852), (266, 75884180), (280, 72089971), (380, 53118926), (532, 37942090), (665, 30353672), (760, 26559463), (1033, 19540360), (1064, 18971045), (1330, 15176836), (2066, 9770180), (2660, 7588418), (3673, 5495560), (4132, 4885090), (5165, 3908072), (5320, 3794209), (7231, 2791480), (7346, 2747780), (8264, 2442545), (10330, 1954036), (14462, 1395740), (14692, 1373890), (18365, 1099112), (19627, 1028440), (20660, 977018), (25711, 785080), (28924, 697870), (29384, 686945), (36155, 558296), (36730, 549556), (39254, 514220), (41320, 488509), (51422, 392540), (57848, 348935), (69787, 289240), (72310, 279148), (73460, 274778), (78508, 257110), (98135, 205688), (102844, 196270), (128555, 157016), (137389, 146920), (139574, 144620)]