28502320

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{661}}^1$

素因数の和:699

約数の個数: 120

約数和(自身を含む): 84222288

約数和(自身を除く): 55719968

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 176, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 560, 616, 661, 770, 784, 880, 980, 1078, 1232, 1322, 1540, 1960, 2156, 2644, 2695, 3080, 3305, 3920, 4312, 4627, 5288, 5390, 6160, 6610, 7271, 8624, 9254, 10576, 10780, 13220, 14542, 18508, 21560, 23135, 26440, 29084, 32389, 36355, 37016, 43120, 46270, 50897, 52880, 58168, 64778, 72710, 74032, 92540, 101794, 116336, 129556, 145420, 161945, 185080, 203588, 254485, 259112, 290840, 323890, 356279, 370160, 407176, 508970, 518224, 581680, 647780, 712558, 814352, 1017940, 1295560, 1425116, 1781395, 2035880, 2591120, 2850232, 3562790, 4071760, 5700464, 7125580, 14251160, 28502320]

約数ペア:

[(1, 28502320), (2, 14251160), (4, 7125580), (5, 5700464), (7, 4071760), (8, 3562790), (10, 2850232), (11, 2591120), (14, 2035880), (16, 1781395), (20, 1425116), (22, 1295560), (28, 1017940), (35, 814352), (40, 712558), (44, 647780), (49, 581680), (55, 518224), (56, 508970), (70, 407176), (77, 370160), (80, 356279), (88, 323890), (98, 290840), (110, 259112), (112, 254485), (140, 203588), (154, 185080), (176, 161945), (196, 145420), (220, 129556), (245, 116336), (280, 101794), (308, 92540), (385, 74032), (392, 72710), (440, 64778), (490, 58168), (539, 52880), (560, 50897), (616, 46270), (661, 43120), (770, 37016), (784, 36355), (880, 32389), (980, 29084), (1078, 26440), (1232, 23135), (1322, 21560), (1540, 18508), (1960, 14542), (2156, 13220), (2644, 10780), (2695, 10576), (3080, 9254), (3305, 8624), (3920, 7271), (4312, 6610), (4627, 6160), (5288, 5390)]