1639021440

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{121951}}^1$

素因数の和:121980

約数の個数: 128

約数和(自身を含む): 5970769920

約数和(自身を除く): 4331748480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 121951, 243902, 365853, 487804, 609755, 731706, 853657, 975608, 1219510, 1463412, 1707314, 1829265, 1951216, 2439020, 2560971, 2926824, 3414628, 3658530, 3902432, 4268285, 4878040, 5121942, 5853648, 6829256, 7317060, 7804864, 8536570, 9756080, 10243884, 11707296, 12804855, 13658512, 14634120, 15609728, 17073140, 19512160, 20487768, 23414592, 25609710, 27317024, 29268240, 34146280, 39024320, 40975536, 46829184, 51219420, 54634048, 58536480, 68292560, 78048640, 81951072, 102438840, 109268096, 117072960, 136585120, 163902144, 204877680, 234145920, 273170240, 327804288, 409755360, 546340480, 819510720, 1639021440]

約数ペア:

[(1, 1639021440), (2, 819510720), (3, 546340480), (4, 409755360), (5, 327804288), (6, 273170240), (7, 234145920), (8, 204877680), (10, 163902144), (12, 136585120), (14, 117072960), (15, 109268096), (16, 102438840), (20, 81951072), (21, 78048640), (24, 68292560), (28, 58536480), (30, 54634048), (32, 51219420), (35, 46829184), (40, 40975536), (42, 39024320), (48, 34146280), (56, 29268240), (60, 27317024), (64, 25609710), (70, 23414592), (80, 20487768), (84, 19512160), (96, 17073140), (105, 15609728), (112, 14634120), (120, 13658512), (128, 12804855), (140, 11707296), (160, 10243884), (168, 9756080), (192, 8536570), (210, 7804864), (224, 7317060), (240, 6829256), (280, 5853648), (320, 5121942), (336, 4878040), (384, 4268285), (420, 3902432), (448, 3658530), (480, 3414628), (560, 2926824), (640, 2560971), (672, 2439020), (840, 1951216), (896, 1829265), (960, 1707314), (1120, 1463412), (1344, 1219510), (1680, 975608), (1920, 853657), (2240, 731706), (2688, 609755), (3360, 487804), (4480, 365853), (6720, 243902), (13440, 121951)]