28543185

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:220

約数の個数: 80

約数和(自身を含む): 57499200

約数和(自身を除く): 28956015

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 43, 45, 55, 81, 99, 129, 135, 149, 165, 215, 297, 387, 405, 447, 473, 495, 645, 745, 891, 1161, 1341, 1419, 1485, 1639, 1935, 2235, 2365, 3483, 4023, 4257, 4455, 4917, 5805, 6407, 6705, 7095, 8195, 12069, 12771, 14751, 17415, 19221, 20115, 21285, 24585, 32035, 38313, 44253, 57663, 60345, 63855, 70477, 73755, 96105, 132759, 172989, 191565, 211431, 221265, 288315, 352385, 518967, 634293, 663795, 864945, 1057155, 1902879, 2594835, 3171465, 5708637, 9514395, 28543185]

約数ペア:

[(1, 28543185), (3, 9514395), (5, 5708637), (9, 3171465), (11, 2594835), (15, 1902879), (27, 1057155), (33, 864945), (43, 663795), (45, 634293), (55, 518967), (81, 352385), (99, 288315), (129, 221265), (135, 211431), (149, 191565), (165, 172989), (215, 132759), (297, 96105), (387, 73755), (405, 70477), (447, 63855), (473, 60345), (495, 57663), (645, 44253), (745, 38313), (891, 32035), (1161, 24585), (1341, 21285), (1419, 20115), (1485, 19221), (1639, 17415), (1935, 14751), (2235, 12771), (2365, 12069), (3483, 8195), (4023, 7095), (4257, 6705), (4455, 6407), (4917, 5805)]