401280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:52

約数の個数: 128

約数和(自身を含む): 1468800

約数和(自身を除く): 1067520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 19, 20, 22, 24, 30, 32, 33, 38, 40, 44, 48, 55, 57, 60, 64, 66, 76, 80, 88, 95, 96, 110, 114, 120, 128, 132, 152, 160, 165, 176, 190, 192, 209, 220, 228, 240, 264, 285, 304, 320, 330, 352, 380, 384, 418, 440, 456, 480, 528, 570, 608, 627, 640, 660, 704, 760, 836, 880, 912, 960, 1045, 1056, 1140, 1216, 1254, 1320, 1408, 1520, 1672, 1760, 1824, 1920, 2090, 2112, 2280, 2432, 2508, 2640, 3040, 3135, 3344, 3520, 3648, 4180, 4224, 4560, 5016, 5280, 6080, 6270, 6688, 7040, 7296, 8360, 9120, 10032, 10560, 12160, 12540, 13376, 16720, 18240, 20064, 21120, 25080, 26752, 33440, 36480, 40128, 50160, 66880, 80256, 100320, 133760, 200640, 401280]

約数ペア:

[(1, 401280), (2, 200640), (3, 133760), (4, 100320), (5, 80256), (6, 66880), (8, 50160), (10, 40128), (11, 36480), (12, 33440), (15, 26752), (16, 25080), (19, 21120), (20, 20064), (22, 18240), (24, 16720), (30, 13376), (32, 12540), (33, 12160), (38, 10560), (40, 10032), (44, 9120), (48, 8360), (55, 7296), (57, 7040), (60, 6688), (64, 6270), (66, 6080), (76, 5280), (80, 5016), (88, 4560), (95, 4224), (96, 4180), (110, 3648), (114, 3520), (120, 3344), (128, 3135), (132, 3040), (152, 2640), (160, 2508), (165, 2432), (176, 2280), (190, 2112), (192, 2090), (209, 1920), (220, 1824), (228, 1760), (240, 1672), (264, 1520), (285, 1408), (304, 1320), (320, 1254), (330, 1216), (352, 1140), (380, 1056), (384, 1045), (418, 960), (440, 912), (456, 880), (480, 836), (528, 760), (570, 704), (608, 660), (627, 640)]