638888640

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51193}}^1$

素因数の和:51226

約数の個数: 112

約数和(自身を含む): 2184550368

約数和(自身を除く): 1545661728

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 3120, 4160, 6240, 12480, 51193, 102386, 153579, 204772, 255965, 307158, 409544, 511930, 614316, 665509, 767895, 819088, 1023860, 1228632, 1331018, 1535790, 1638176, 1996527, 2047720, 2457264, 2662036, 3071580, 3276352, 3327545, 3993054, 4095440, 4914528, 5324072, 6143160, 6655090, 7986108, 8190880, 9829056, 9982635, 10648144, 12286320, 13310180, 15972216, 16381760, 19965270, 21296288, 24572640, 26620360, 31944432, 39930540, 42592576, 49145280, 53240720, 63888864, 79861080, 106481440, 127777728, 159722160, 212962880, 319444320, 638888640]

約数ペア:

[(1, 638888640), (2, 319444320), (3, 212962880), (4, 159722160), (5, 127777728), (6, 106481440), (8, 79861080), (10, 63888864), (12, 53240720), (13, 49145280), (15, 42592576), (16, 39930540), (20, 31944432), (24, 26620360), (26, 24572640), (30, 21296288), (32, 19965270), (39, 16381760), (40, 15972216), (48, 13310180), (52, 12286320), (60, 10648144), (64, 9982635), (65, 9829056), (78, 8190880), (80, 7986108), (96, 6655090), (104, 6143160), (120, 5324072), (130, 4914528), (156, 4095440), (160, 3993054), (192, 3327545), (195, 3276352), (208, 3071580), (240, 2662036), (260, 2457264), (312, 2047720), (320, 1996527), (390, 1638176), (416, 1535790), (480, 1331018), (520, 1228632), (624, 1023860), (780, 819088), (832, 767895), (960, 665509), (1040, 614316), (1248, 511930), (1560, 409544), (2080, 307158), (2496, 255965), (3120, 204772), (4160, 153579), (6240, 102386), (12480, 51193)]