19979160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{503}}^1$

素因数の和:848

約数の個数: 64

約数和(自身を含む): 60238080

約数和(自身を除く): 40258920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 331, 503, 662, 993, 1006, 1324, 1509, 1655, 1986, 2012, 2515, 2648, 3018, 3310, 3972, 4024, 4965, 5030, 6036, 6620, 7545, 7944, 9930, 10060, 12072, 13240, 15090, 19860, 20120, 30180, 39720, 60360, 166493, 332986, 499479, 665972, 832465, 998958, 1331944, 1664930, 1997916, 2497395, 3329860, 3995832, 4994790, 6659720, 9989580, 19979160]

約数ペア:

[(1, 19979160), (2, 9989580), (3, 6659720), (4, 4994790), (5, 3995832), (6, 3329860), (8, 2497395), (10, 1997916), (12, 1664930), (15, 1331944), (20, 998958), (24, 832465), (30, 665972), (40, 499479), (60, 332986), (120, 166493), (331, 60360), (503, 39720), (662, 30180), (993, 20120), (1006, 19860), (1324, 15090), (1509, 13240), (1655, 12072), (1986, 10060), (2012, 9930), (2515, 7944), (2648, 7545), (3018, 6620), (3310, 6036), (3972, 5030), (4024, 4965)]