209780480

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1801}}^1$

素因数の和:1842

約数の個数: 144

約数和(自身を含む): 618792384

約数和(自身を除く): 409011904

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, 256, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 728, 832, 896, 910, 1040, 1120, 1280, 1456, 1664, 1792, 1801, 1820, 2080, 2240, 2912, 3328, 3602, 3640, 4160, 4480, 5824, 7204, 7280, 8320, 8960, 9005, 11648, 12607, 14408, 14560, 16640, 18010, 23296, 23413, 25214, 28816, 29120, 36020, 46826, 50428, 57632, 58240, 63035, 72040, 93652, 100856, 115264, 116480, 117065, 126070, 144080, 163891, 187304, 201712, 230528, 234130, 252140, 288160, 327782, 374608, 403424, 461056, 468260, 504280, 576320, 655564, 749216, 806848, 819455, 936520, 1008560, 1152640, 1311128, 1498432, 1613696, 1638910, 1873040, 2017120, 2305280, 2622256, 2996864, 3227392, 3277820, 3746080, 4034240, 5244512, 5993728, 6555640, 7492160, 8068480, 10489024, 13111280, 14984320, 16136960, 20978048, 26222560, 29968640, 41956096, 52445120, 104890240, 209780480]

約数ペア:

[(1, 209780480), (2, 104890240), (4, 52445120), (5, 41956096), (7, 29968640), (8, 26222560), (10, 20978048), (13, 16136960), (14, 14984320), (16, 13111280), (20, 10489024), (26, 8068480), (28, 7492160), (32, 6555640), (35, 5993728), (40, 5244512), (52, 4034240), (56, 3746080), (64, 3277820), (65, 3227392), (70, 2996864), (80, 2622256), (91, 2305280), (104, 2017120), (112, 1873040), (128, 1638910), (130, 1613696), (140, 1498432), (160, 1311128), (182, 1152640), (208, 1008560), (224, 936520), (256, 819455), (260, 806848), (280, 749216), (320, 655564), (364, 576320), (416, 504280), (448, 468260), (455, 461056), (520, 403424), (560, 374608), (640, 327782), (728, 288160), (832, 252140), (896, 234130), (910, 230528), (1040, 201712), (1120, 187304), (1280, 163891), (1456, 144080), (1664, 126070), (1792, 117065), (1801, 116480), (1820, 115264), (2080, 100856), (2240, 93652), (2912, 72040), (3328, 63035), (3602, 58240), (3640, 57632), (4160, 50428), (4480, 46826), (5824, 36020), (7204, 29120), (7280, 28816), (8320, 25214), (8960, 23413), (9005, 23296), (11648, 18010), (12607, 16640), (14408, 14560)]