28129980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{631}}^1\times {\mathrm{743}}^1$

素因数の和:1386

約数の個数: 48

約数和(自身を含む): 78994944

約数和(自身を除く): 50864964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 631, 743, 1262, 1486, 1893, 2229, 2524, 2972, 3155, 3715, 3786, 4458, 6310, 7430, 7572, 8916, 9465, 11145, 12620, 14860, 18930, 22290, 37860, 44580, 468833, 937666, 1406499, 1875332, 2344165, 2812998, 4688330, 5625996, 7032495, 9376660, 14064990, 28129980]

約数ペア:

[(1, 28129980), (2, 14064990), (3, 9376660), (4, 7032495), (5, 5625996), (6, 4688330), (10, 2812998), (12, 2344165), (15, 1875332), (20, 1406499), (30, 937666), (60, 468833), (631, 44580), (743, 37860), (1262, 22290), (1486, 18930), (1893, 14860), (2229, 12620), (2524, 11145), (2972, 9465), (3155, 8916), (3715, 7572), (3786, 7430), (4458, 6310)]