28194780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20431}}^1$

素因数の和:20466

約数の個数: 48

約数和(自身を含む): 82381824

約数和(自身を除く): 54187044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 20431, 40862, 61293, 81724, 102155, 122586, 204310, 245172, 306465, 408620, 469913, 612930, 939826, 1225860, 1409739, 1879652, 2349565, 2819478, 4699130, 5638956, 7048695, 9398260, 14097390, 28194780]

約数ペア:

[(1, 28194780), (2, 14097390), (3, 9398260), (4, 7048695), (5, 5638956), (6, 4699130), (10, 2819478), (12, 2349565), (15, 1879652), (20, 1409739), (23, 1225860), (30, 939826), (46, 612930), (60, 469913), (69, 408620), (92, 306465), (115, 245172), (138, 204310), (230, 122586), (276, 102155), (345, 81724), (460, 61293), (690, 40862), (1380, 20431)]