28783320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1831}}^1$

素因数の和:1976

約数の個数: 64

約数和(自身を含む): 87056640

約数和(自身を除く): 58273320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1831, 1965, 2620, 3144, 3662, 3930, 5240, 5493, 7324, 7860, 9155, 10986, 14648, 15720, 18310, 21972, 27465, 36620, 43944, 54930, 73240, 109860, 219720, 239861, 479722, 719583, 959444, 1199305, 1439166, 1918888, 2398610, 2878332, 3597915, 4797220, 5756664, 7195830, 9594440, 14391660, 28783320]

約数ペア:

[(1, 28783320), (2, 14391660), (3, 9594440), (4, 7195830), (5, 5756664), (6, 4797220), (8, 3597915), (10, 2878332), (12, 2398610), (15, 1918888), (20, 1439166), (24, 1199305), (30, 959444), (40, 719583), (60, 479722), (120, 239861), (131, 219720), (262, 109860), (393, 73240), (524, 54930), (655, 43944), (786, 36620), (1048, 27465), (1310, 21972), (1572, 18310), (1831, 15720), (1965, 14648), (2620, 10986), (3144, 9155), (3662, 7860), (3930, 7324), (5240, 5493)]