28446320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{643}}^1$

素因数の和:742

約数の個数: 80

約数和(自身を含む): 76661760

約数和(自身を除く): 48215440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 140, 158, 280, 316, 395, 553, 560, 632, 643, 790, 1106, 1264, 1286, 1580, 2212, 2572, 2765, 3160, 3215, 4424, 4501, 5144, 5530, 6320, 6430, 8848, 9002, 10288, 11060, 12860, 18004, 22120, 22505, 25720, 36008, 44240, 45010, 50797, 51440, 72016, 90020, 101594, 180040, 203188, 253985, 355579, 360080, 406376, 507970, 711158, 812752, 1015940, 1422316, 1777895, 2031880, 2844632, 3555790, 4063760, 5689264, 7111580, 14223160, 28446320]

約数ペア:

[(1, 28446320), (2, 14223160), (4, 7111580), (5, 5689264), (7, 4063760), (8, 3555790), (10, 2844632), (14, 2031880), (16, 1777895), (20, 1422316), (28, 1015940), (35, 812752), (40, 711158), (56, 507970), (70, 406376), (79, 360080), (80, 355579), (112, 253985), (140, 203188), (158, 180040), (280, 101594), (316, 90020), (395, 72016), (553, 51440), (560, 50797), (632, 45010), (643, 44240), (790, 36008), (1106, 25720), (1264, 22505), (1286, 22120), (1580, 18004), (2212, 12860), (2572, 11060), (2765, 10288), (3160, 9002), (3215, 8848), (4424, 6430), (4501, 6320), (5144, 5530)]