28920120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{601}}^1$

素因数の和:1016

約数の個数: 64

約数和(自身を含む): 87121440

約数和(自身を除く): 58201320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 401, 601, 802, 1202, 1203, 1604, 1803, 2005, 2404, 2406, 3005, 3208, 3606, 4010, 4808, 4812, 6010, 6015, 7212, 8020, 9015, 9624, 12020, 12030, 14424, 16040, 18030, 24040, 24060, 36060, 48120, 72120, 241001, 482002, 723003, 964004, 1205005, 1446006, 1928008, 2410010, 2892012, 3615015, 4820020, 5784024, 7230030, 9640040, 14460060, 28920120]

約数ペア:

[(1, 28920120), (2, 14460060), (3, 9640040), (4, 7230030), (5, 5784024), (6, 4820020), (8, 3615015), (10, 2892012), (12, 2410010), (15, 1928008), (20, 1446006), (24, 1205005), (30, 964004), (40, 723003), (60, 482002), (120, 241001), (401, 72120), (601, 48120), (802, 36060), (1202, 24060), (1203, 24040), (1604, 18030), (1803, 16040), (2005, 14424), (2404, 12030), (2406, 12020), (3005, 9624), (3208, 9015), (3606, 8020), (4010, 7212), (4808, 6015), (4812, 6010)]