280786140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{7393}}^1$

素因数の和:7619

約数の個数: 72

約数和(自身を含む): 855870288

約数和(自身を除く): 575084148

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 633, 844, 1055, 1266, 1899, 2110, 2532, 3165, 3798, 4220, 6330, 7393, 7596, 9495, 12660, 14786, 18990, 22179, 29572, 36965, 37980, 44358, 66537, 73930, 88716, 110895, 133074, 147860, 221790, 266148, 332685, 443580, 665370, 1330740, 1559923, 3119846, 4679769, 6239692, 7799615, 9359538, 14039307, 15599230, 18719076, 23398845, 28078614, 31198460, 46797690, 56157228, 70196535, 93595380, 140393070, 280786140]

約数ペア:

[(1, 280786140), (2, 140393070), (3, 93595380), (4, 70196535), (5, 56157228), (6, 46797690), (9, 31198460), (10, 28078614), (12, 23398845), (15, 18719076), (18, 15599230), (20, 14039307), (30, 9359538), (36, 7799615), (45, 6239692), (60, 4679769), (90, 3119846), (180, 1559923), (211, 1330740), (422, 665370), (633, 443580), (844, 332685), (1055, 266148), (1266, 221790), (1899, 147860), (2110, 133074), (2532, 110895), (3165, 88716), (3798, 73930), (4220, 66537), (6330, 44358), (7393, 37980), (7596, 36965), (9495, 29572), (12660, 22179), (14786, 18990)]