209612800

素因数分解:

$2^{12}\times 5^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:146

約数の個数: 156

約数和(自身を含む): 548469360

約数和(自身を除く): 338856560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 89, 92, 100, 115, 128, 160, 178, 184, 200, 230, 256, 320, 356, 368, 400, 445, 460, 512, 575, 640, 712, 736, 800, 890, 920, 1024, 1150, 1280, 1424, 1472, 1600, 1780, 1840, 2047, 2048, 2225, 2300, 2560, 2848, 2944, 3200, 3560, 3680, 4094, 4096, 4450, 4600, 5120, 5696, 5888, 6400, 7120, 7360, 8188, 8900, 9200, 10235, 10240, 11392, 11776, 12800, 14240, 14720, 16376, 17800, 18400, 20470, 20480, 22784, 23552, 25600, 28480, 29440, 32752, 35600, 36800, 40940, 45568, 47104, 51175, 51200, 56960, 58880, 65504, 71200, 73600, 81880, 91136, 94208, 102350, 102400, 113920, 117760, 131008, 142400, 147200, 163760, 182272, 204700, 227840, 235520, 262016, 284800, 294400, 327520, 364544, 409400, 455680, 471040, 524032, 569600, 588800, 655040, 818800, 911360, 1048064, 1139200, 1177600, 1310080, 1637600, 1822720, 2096128, 2278400, 2355200, 2620160, 3275200, 4192256, 4556800, 5240320, 6550400, 8384512, 9113600, 10480640, 13100800, 20961280, 26201600, 41922560, 52403200, 104806400, 209612800]

約数ペア:

[(1, 209612800), (2, 104806400), (4, 52403200), (5, 41922560), (8, 26201600), (10, 20961280), (16, 13100800), (20, 10480640), (23, 9113600), (25, 8384512), (32, 6550400), (40, 5240320), (46, 4556800), (50, 4192256), (64, 3275200), (80, 2620160), (89, 2355200), (92, 2278400), (100, 2096128), (115, 1822720), (128, 1637600), (160, 1310080), (178, 1177600), (184, 1139200), (200, 1048064), (230, 911360), (256, 818800), (320, 655040), (356, 588800), (368, 569600), (400, 524032), (445, 471040), (460, 455680), (512, 409400), (575, 364544), (640, 327520), (712, 294400), (736, 284800), (800, 262016), (890, 235520), (920, 227840), (1024, 204700), (1150, 182272), (1280, 163760), (1424, 147200), (1472, 142400), (1600, 131008), (1780, 117760), (1840, 113920), (2047, 102400), (2048, 102350), (2225, 94208), (2300, 91136), (2560, 81880), (2848, 73600), (2944, 71200), (3200, 65504), (3560, 58880), (3680, 56960), (4094, 51200), (4096, 51175), (4450, 47104), (4600, 45568), (5120, 40940), (5696, 36800), (5888, 35600), (6400, 32752), (7120, 29440), (7360, 28480), (8188, 25600), (8900, 23552), (9200, 22784), (10235, 20480), (10240, 20470), (11392, 18400), (11776, 17800), (12800, 16376), (14240, 14720)]