28979600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5573}}^1$

素因数の和:5604

約数の個数: 60

約数和(自身を含む): 74992596

約数和(自身を除く): 46012996

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 5573, 11146, 22292, 27865, 44584, 55730, 72449, 89168, 111460, 139325, 144898, 222920, 278650, 289796, 362245, 445840, 557300, 579592, 724490, 1114600, 1159184, 1448980, 1811225, 2229200, 2897960, 3622450, 5795920, 7244900, 14489800, 28979600]

約数ペア:

[(1, 28979600), (2, 14489800), (4, 7244900), (5, 5795920), (8, 3622450), (10, 2897960), (13, 2229200), (16, 1811225), (20, 1448980), (25, 1159184), (26, 1114600), (40, 724490), (50, 579592), (52, 557300), (65, 445840), (80, 362245), (100, 289796), (104, 278650), (130, 222920), (200, 144898), (208, 139325), (260, 111460), (325, 89168), (400, 72449), (520, 55730), (650, 44584), (1040, 27865), (1300, 22292), (2600, 11146), (5200, 5573)]