20054320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1753}}^1$

素因数の和:1790

約数の個数: 80

約数和(自身を含む): 54808992

約数和(自身を除く): 34754672

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 1753, 2288, 2860, 3506, 5720, 7012, 8765, 11440, 14024, 17530, 19283, 22789, 28048, 35060, 38566, 45578, 70120, 77132, 91156, 96415, 113945, 140240, 154264, 182312, 192830, 227890, 250679, 308528, 364624, 385660, 455780, 501358, 771320, 911560, 1002716, 1253395, 1542640, 1823120, 2005432, 2506790, 4010864, 5013580, 10027160, 20054320]

約数ペア:

[(1, 20054320), (2, 10027160), (4, 5013580), (5, 4010864), (8, 2506790), (10, 2005432), (11, 1823120), (13, 1542640), (16, 1253395), (20, 1002716), (22, 911560), (26, 771320), (40, 501358), (44, 455780), (52, 385660), (55, 364624), (65, 308528), (80, 250679), (88, 227890), (104, 192830), (110, 182312), (130, 154264), (143, 140240), (176, 113945), (208, 96415), (220, 91156), (260, 77132), (286, 70120), (440, 45578), (520, 38566), (572, 35060), (715, 28048), (880, 22789), (1040, 19283), (1144, 17530), (1430, 14024), (1753, 11440), (2288, 8765), (2860, 7012), (3506, 5720)]