28791720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{503}}^1$

素因数の和:576

約数の個数: 128

約数和(自身を含む): 97977600

約数和(自身を除く): 69185880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 53, 54, 60, 72, 90, 106, 108, 120, 135, 159, 180, 212, 216, 265, 270, 318, 360, 424, 477, 503, 530, 540, 636, 795, 954, 1006, 1060, 1080, 1272, 1431, 1509, 1590, 1908, 2012, 2120, 2385, 2515, 2862, 3018, 3180, 3816, 4024, 4527, 4770, 5030, 5724, 6036, 6360, 7155, 7545, 9054, 9540, 10060, 11448, 12072, 13581, 14310, 15090, 18108, 19080, 20120, 22635, 26659, 27162, 28620, 30180, 36216, 45270, 53318, 54324, 57240, 60360, 67905, 79977, 90540, 106636, 108648, 133295, 135810, 159954, 181080, 213272, 239931, 266590, 271620, 319908, 399885, 479862, 533180, 543240, 639816, 719793, 799770, 959724, 1066360, 1199655, 1439586, 1599540, 1919448, 2399310, 2879172, 3199080, 3598965, 4798620, 5758344, 7197930, 9597240, 14395860, 28791720]

約数ペア:

[(1, 28791720), (2, 14395860), (3, 9597240), (4, 7197930), (5, 5758344), (6, 4798620), (8, 3598965), (9, 3199080), (10, 2879172), (12, 2399310), (15, 1919448), (18, 1599540), (20, 1439586), (24, 1199655), (27, 1066360), (30, 959724), (36, 799770), (40, 719793), (45, 639816), (53, 543240), (54, 533180), (60, 479862), (72, 399885), (90, 319908), (106, 271620), (108, 266590), (120, 239931), (135, 213272), (159, 181080), (180, 159954), (212, 135810), (216, 133295), (265, 108648), (270, 106636), (318, 90540), (360, 79977), (424, 67905), (477, 60360), (503, 57240), (530, 54324), (540, 53318), (636, 45270), (795, 36216), (954, 30180), (1006, 28620), (1060, 27162), (1080, 26659), (1272, 22635), (1431, 20120), (1509, 19080), (1590, 18108), (1908, 15090), (2012, 14310), (2120, 13581), (2385, 12072), (2515, 11448), (2862, 10060), (3018, 9540), (3180, 9054), (3816, 7545), (4024, 7155), (4527, 6360), (4770, 6036), (5030, 5724)]