19870080

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:232

約数の個数: 128

約数和(自身を含む): 64627200

約数和(自身を除く): 44757120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 79, 80, 96, 120, 128, 131, 158, 160, 192, 237, 240, 262, 316, 320, 384, 393, 395, 474, 480, 524, 632, 640, 655, 786, 790, 948, 960, 1048, 1185, 1264, 1310, 1572, 1580, 1896, 1920, 1965, 2096, 2370, 2528, 2620, 3144, 3160, 3792, 3930, 4192, 4740, 5056, 5240, 6288, 6320, 7584, 7860, 8384, 9480, 10112, 10349, 10480, 12576, 12640, 15168, 15720, 16768, 18960, 20698, 20960, 25152, 25280, 30336, 31047, 31440, 37920, 41396, 41920, 50304, 50560, 51745, 62094, 62880, 75840, 82792, 83840, 103490, 124188, 125760, 151680, 155235, 165584, 206980, 248376, 251520, 310470, 331168, 413960, 496752, 620940, 662336, 827920, 993504, 1241880, 1324672, 1655840, 1987008, 2483760, 3311680, 3974016, 4967520, 6623360, 9935040, 19870080]

約数ペア:

[(1, 19870080), (2, 9935040), (3, 6623360), (4, 4967520), (5, 3974016), (6, 3311680), (8, 2483760), (10, 1987008), (12, 1655840), (15, 1324672), (16, 1241880), (20, 993504), (24, 827920), (30, 662336), (32, 620940), (40, 496752), (48, 413960), (60, 331168), (64, 310470), (79, 251520), (80, 248376), (96, 206980), (120, 165584), (128, 155235), (131, 151680), (158, 125760), (160, 124188), (192, 103490), (237, 83840), (240, 82792), (262, 75840), (316, 62880), (320, 62094), (384, 51745), (393, 50560), (395, 50304), (474, 41920), (480, 41396), (524, 37920), (632, 31440), (640, 31047), (655, 30336), (786, 25280), (790, 25152), (948, 20960), (960, 20698), (1048, 18960), (1185, 16768), (1264, 15720), (1310, 15168), (1572, 12640), (1580, 12576), (1896, 10480), (1920, 10349), (1965, 10112), (2096, 9480), (2370, 8384), (2528, 7860), (2620, 7584), (3144, 6320), (3160, 6288), (3792, 5240), (3930, 5056), (4192, 4740)]