28906220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10867}}^1$

素因数の和:10902

約数の個数: 48

約数和(自身を含む): 73032960

約数和(自身を除く): 44126740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 10867, 21734, 43468, 54335, 76069, 108670, 152138, 206473, 217340, 304276, 380345, 412946, 760690, 825892, 1032365, 1445311, 1521380, 2064730, 2890622, 4129460, 5781244, 7226555, 14453110, 28906220]

約数ペア:

[(1, 28906220), (2, 14453110), (4, 7226555), (5, 5781244), (7, 4129460), (10, 2890622), (14, 2064730), (19, 1521380), (20, 1445311), (28, 1032365), (35, 825892), (38, 760690), (70, 412946), (76, 380345), (95, 304276), (133, 217340), (140, 206473), (190, 152138), (266, 108670), (380, 76069), (532, 54335), (665, 43468), (1330, 21734), (2660, 10867)]