28770225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{811}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 53163264

約数和(自身を除く): 24393039

約数列:

[1, 3, 5, 11, 15, 25, 33, 43, 55, 75, 129, 165, 215, 275, 473, 645, 811, 825, 1075, 1419, 2365, 2433, 3225, 4055, 7095, 8921, 11825, 12165, 20275, 26763, 34873, 35475, 44605, 60825, 104619, 133815, 174365, 223025, 383603, 523095, 669075, 871825, 1150809, 1918015, 2615475, 5754045, 9590075, 28770225]

約数ペア:

[(1, 28770225), (3, 9590075), (5, 5754045), (11, 2615475), (15, 1918015), (25, 1150809), (33, 871825), (43, 669075), (55, 523095), (75, 383603), (129, 223025), (165, 174365), (215, 133815), (275, 104619), (473, 60825), (645, 44605), (811, 35475), (825, 34873), (1075, 26763), (1419, 20275), (2365, 12165), (2433, 11825), (3225, 8921), (4055, 7095)]