988897560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61961}}^1$

素因数の和:62001

約数の個数: 128

約数和(自身を含む): 3569011200

約数和(自身を除く): 2580113640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1596, 1995, 2280, 2660, 3192, 3990, 5320, 7980, 15960, 61961, 123922, 185883, 247844, 309805, 371766, 433727, 495688, 619610, 743532, 867454, 929415, 1177259, 1239220, 1301181, 1487064, 1734908, 1858830, 2168635, 2354518, 2478440, 2602362, 3469816, 3531777, 3717660, 4337270, 4709036, 5204724, 5886295, 6505905, 7063554, 7435320, 8240813, 8674540, 9418072, 10409448, 11772590, 13011810, 14127108, 16481626, 17349080, 17658885, 23545180, 24722439, 26023620, 28254216, 32963252, 35317770, 41204065, 47090360, 49444878, 52047240, 65926504, 70635540, 82408130, 98889756, 123612195, 141271080, 164816260, 197779512, 247224390, 329632520, 494448780, 988897560]

約数ペア:

[(1, 988897560), (2, 494448780), (3, 329632520), (4, 247224390), (5, 197779512), (6, 164816260), (7, 141271080), (8, 123612195), (10, 98889756), (12, 82408130), (14, 70635540), (15, 65926504), (19, 52047240), (20, 49444878), (21, 47090360), (24, 41204065), (28, 35317770), (30, 32963252), (35, 28254216), (38, 26023620), (40, 24722439), (42, 23545180), (56, 17658885), (57, 17349080), (60, 16481626), (70, 14127108), (76, 13011810), (84, 11772590), (95, 10409448), (105, 9418072), (114, 8674540), (120, 8240813), (133, 7435320), (140, 7063554), (152, 6505905), (168, 5886295), (190, 5204724), (210, 4709036), (228, 4337270), (266, 3717660), (280, 3531777), (285, 3469816), (380, 2602362), (399, 2478440), (420, 2354518), (456, 2168635), (532, 1858830), (570, 1734908), (665, 1487064), (760, 1301181), (798, 1239220), (840, 1177259), (1064, 929415), (1140, 867454), (1330, 743532), (1596, 619610), (1995, 495688), (2280, 433727), (2660, 371766), (3192, 309805), (3990, 247844), (5320, 185883), (7980, 123922), (15960, 61961)]