28746320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{919}}^1$

素因数の和:972

約数の個数: 80

約数和(自身を含む): 73923840

約数和(自身を除く): 45177520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 68, 80, 85, 92, 115, 136, 170, 184, 230, 272, 340, 368, 391, 460, 680, 782, 919, 920, 1360, 1564, 1838, 1840, 1955, 3128, 3676, 3910, 4595, 6256, 7352, 7820, 9190, 14704, 15623, 15640, 18380, 21137, 31246, 31280, 36760, 42274, 62492, 73520, 78115, 84548, 105685, 124984, 156230, 169096, 211370, 249968, 312460, 338192, 359329, 422740, 624920, 718658, 845480, 1249840, 1437316, 1690960, 1796645, 2874632, 3593290, 5749264, 7186580, 14373160, 28746320]

約数ペア:

[(1, 28746320), (2, 14373160), (4, 7186580), (5, 5749264), (8, 3593290), (10, 2874632), (16, 1796645), (17, 1690960), (20, 1437316), (23, 1249840), (34, 845480), (40, 718658), (46, 624920), (68, 422740), (80, 359329), (85, 338192), (92, 312460), (115, 249968), (136, 211370), (170, 169096), (184, 156230), (230, 124984), (272, 105685), (340, 84548), (368, 78115), (391, 73520), (460, 62492), (680, 42274), (782, 36760), (919, 31280), (920, 31246), (1360, 21137), (1564, 18380), (1838, 15640), (1840, 15623), (1955, 14704), (3128, 9190), (3676, 7820), (3910, 7352), (4595, 6256)]