18220950

素因数分解:

$2^1\times 3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{409}}^1$

素因数の和:444

約数の個数: 120

約数和(自身を含む): 55364760

約数和(自身を除く): 37143810

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 27, 30, 33, 45, 50, 54, 55, 66, 75, 81, 90, 99, 110, 135, 150, 162, 165, 198, 225, 270, 275, 297, 330, 405, 409, 450, 495, 550, 594, 675, 810, 818, 825, 891, 990, 1227, 1350, 1485, 1650, 1782, 2025, 2045, 2454, 2475, 2970, 3681, 4050, 4090, 4455, 4499, 4950, 6135, 7362, 7425, 8910, 8998, 10225, 11043, 12270, 13497, 14850, 18405, 20450, 22086, 22275, 22495, 26994, 30675, 33129, 36810, 40491, 44550, 44990, 55215, 61350, 66258, 67485, 80982, 92025, 110430, 112475, 121473, 134970, 165645, 184050, 202455, 224950, 242946, 276075, 331290, 337425, 364419, 404910, 552150, 607365, 674850, 728838, 828225, 1012275, 1214730, 1656450, 1822095, 2024550, 3036825, 3644190, 6073650, 9110475, 18220950]

約数ペア:

[(1, 18220950), (2, 9110475), (3, 6073650), (5, 3644190), (6, 3036825), (9, 2024550), (10, 1822095), (11, 1656450), (15, 1214730), (18, 1012275), (22, 828225), (25, 728838), (27, 674850), (30, 607365), (33, 552150), (45, 404910), (50, 364419), (54, 337425), (55, 331290), (66, 276075), (75, 242946), (81, 224950), (90, 202455), (99, 184050), (110, 165645), (135, 134970), (150, 121473), (162, 112475), (165, 110430), (198, 92025), (225, 80982), (270, 67485), (275, 66258), (297, 61350), (330, 55215), (405, 44990), (409, 44550), (450, 40491), (495, 36810), (550, 33129), (594, 30675), (675, 26994), (810, 22495), (818, 22275), (825, 22086), (891, 20450), (990, 18405), (1227, 14850), (1350, 13497), (1485, 12270), (1650, 11043), (1782, 10225), (2025, 8998), (2045, 8910), (2454, 7425), (2475, 7362), (2970, 6135), (3681, 4950), (4050, 4499), (4090, 4455)]