28203480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{499}}^1$

素因数の和:673

約数の個数: 96

約数和(自身を含む): 92430000

約数和(自身を除く): 64226520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 157, 180, 314, 360, 471, 499, 628, 785, 942, 998, 1256, 1413, 1497, 1570, 1884, 1996, 2355, 2495, 2826, 2994, 3140, 3768, 3992, 4491, 4710, 4990, 5652, 5988, 6280, 7065, 7485, 8982, 9420, 9980, 11304, 11976, 14130, 14970, 17964, 18840, 19960, 22455, 28260, 29940, 35928, 44910, 56520, 59880, 78343, 89820, 156686, 179640, 235029, 313372, 391715, 470058, 626744, 705087, 783430, 940116, 1175145, 1410174, 1566860, 1880232, 2350290, 2820348, 3133720, 3525435, 4700580, 5640696, 7050870, 9401160, 14101740, 28203480]

約数ペア:

[(1, 28203480), (2, 14101740), (3, 9401160), (4, 7050870), (5, 5640696), (6, 4700580), (8, 3525435), (9, 3133720), (10, 2820348), (12, 2350290), (15, 1880232), (18, 1566860), (20, 1410174), (24, 1175145), (30, 940116), (36, 783430), (40, 705087), (45, 626744), (60, 470058), (72, 391715), (90, 313372), (120, 235029), (157, 179640), (180, 156686), (314, 89820), (360, 78343), (471, 59880), (499, 56520), (628, 44910), (785, 35928), (942, 29940), (998, 28260), (1256, 22455), (1413, 19960), (1497, 18840), (1570, 17964), (1884, 14970), (1996, 14130), (2355, 11976), (2495, 11304), (2826, 9980), (2994, 9420), (3140, 8982), (3768, 7485), (3992, 7065), (4491, 6280), (4710, 5988), (4990, 5652)]