28237040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1429}}^1$

素因数の和:1474

約数の個数: 80

約数和(自身を含む): 74474400

約数和(自身を除く): 46237360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1429, 1520, 1976, 2470, 2858, 3952, 4940, 5716, 7145, 9880, 11432, 14290, 18577, 19760, 22864, 27151, 28580, 37154, 54302, 57160, 74308, 92885, 108604, 114320, 135755, 148616, 185770, 217208, 271510, 297232, 352963, 371540, 434416, 543020, 705926, 743080, 1086040, 1411852, 1486160, 1764815, 2172080, 2823704, 3529630, 5647408, 7059260, 14118520, 28237040]

約数ペア:

[(1, 28237040), (2, 14118520), (4, 7059260), (5, 5647408), (8, 3529630), (10, 2823704), (13, 2172080), (16, 1764815), (19, 1486160), (20, 1411852), (26, 1086040), (38, 743080), (40, 705926), (52, 543020), (65, 434416), (76, 371540), (80, 352963), (95, 297232), (104, 271510), (130, 217208), (152, 185770), (190, 148616), (208, 135755), (247, 114320), (260, 108604), (304, 92885), (380, 74308), (494, 57160), (520, 54302), (760, 37154), (988, 28580), (1040, 27151), (1235, 22864), (1429, 19760), (1520, 18577), (1976, 14290), (2470, 11432), (2858, 9880), (3952, 7145), (4940, 5716)]