261089920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4483}}^1$

素因数の和:4522

約数の個数: 128

約数和(自身を含む): 768378240

約数和(自身を除く): 507288320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 728, 832, 896, 910, 1040, 1120, 1456, 1664, 1820, 2080, 2240, 2912, 3640, 4160, 4480, 4483, 5824, 7280, 8320, 8966, 11648, 14560, 17932, 22415, 29120, 31381, 35864, 44830, 58240, 58279, 62762, 71728, 89660, 116558, 125524, 143456, 156905, 179320, 233116, 251048, 286912, 291395, 313810, 358640, 407953, 466232, 502096, 573824, 582790, 627620, 717280, 815906, 932464, 1004192, 1165580, 1255240, 1434560, 1631812, 1864928, 2008384, 2039765, 2331160, 2510480, 2869120, 3263624, 3729856, 4016768, 4079530, 4662320, 5020960, 6527248, 7459712, 8159060, 9324640, 10041920, 13054496, 16318120, 18649280, 20083840, 26108992, 32636240, 37298560, 52217984, 65272480, 130544960, 261089920]

約数ペア:

[(1, 261089920), (2, 130544960), (4, 65272480), (5, 52217984), (7, 37298560), (8, 32636240), (10, 26108992), (13, 20083840), (14, 18649280), (16, 16318120), (20, 13054496), (26, 10041920), (28, 9324640), (32, 8159060), (35, 7459712), (40, 6527248), (52, 5020960), (56, 4662320), (64, 4079530), (65, 4016768), (70, 3729856), (80, 3263624), (91, 2869120), (104, 2510480), (112, 2331160), (128, 2039765), (130, 2008384), (140, 1864928), (160, 1631812), (182, 1434560), (208, 1255240), (224, 1165580), (260, 1004192), (280, 932464), (320, 815906), (364, 717280), (416, 627620), (448, 582790), (455, 573824), (520, 502096), (560, 466232), (640, 407953), (728, 358640), (832, 313810), (896, 291395), (910, 286912), (1040, 251048), (1120, 233116), (1456, 179320), (1664, 156905), (1820, 143456), (2080, 125524), (2240, 116558), (2912, 89660), (3640, 71728), (4160, 62762), (4480, 58279), (4483, 58240), (5824, 44830), (7280, 35864), (8320, 31381), (8966, 29120), (11648, 22415), (14560, 17932)]