2015775

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1$

素因数の和:81

約数の個数: 54

約数和(自身を含む): 3959072

約数和(自身を除く): 1943297

約数列:

[1, 3, 5, 9, 15, 17, 25, 31, 45, 51, 75, 85, 93, 153, 155, 225, 255, 279, 289, 425, 465, 527, 765, 775, 867, 1275, 1395, 1445, 1581, 2325, 2601, 2635, 3825, 4335, 4743, 6975, 7225, 7905, 8959, 13005, 13175, 21675, 23715, 26877, 39525, 44795, 65025, 80631, 118575, 134385, 223975, 403155, 671925, 2015775]

約数ペア:

[(1, 2015775), (3, 671925), (5, 403155), (9, 223975), (15, 134385), (17, 118575), (25, 80631), (31, 65025), (45, 44795), (51, 39525), (75, 26877), (85, 23715), (93, 21675), (153, 13175), (155, 13005), (225, 8959), (255, 7905), (279, 7225), (289, 6975), (425, 4743), (465, 4335), (527, 3825), (765, 2635), (775, 2601), (867, 2325), (1275, 1581), (1395, 1445)]