81370575

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:327

約数の個数: 120

約数和(自身を含む): 177707376

約数和(自身を除く): 96336801

約数列:

[1, 3, 5, 9, 11, 13, 15, 25, 27, 33, 39, 45, 55, 65, 75, 81, 99, 117, 135, 143, 165, 195, 225, 275, 281, 297, 325, 351, 405, 429, 495, 585, 675, 715, 825, 843, 891, 975, 1053, 1287, 1405, 1485, 1755, 2025, 2145, 2475, 2529, 2925, 3091, 3575, 3653, 3861, 4215, 4455, 5265, 6435, 7025, 7425, 7587, 8775, 9273, 10725, 10959, 11583, 12645, 15455, 18265, 19305, 21075, 22275, 22761, 26325, 27819, 32175, 32877, 37935, 40183, 46365, 54795, 57915, 63225, 77275, 83457, 91325, 96525, 98631, 113805, 120549, 139095, 164385, 189675, 200915, 231825, 250371, 273975, 289575, 295893, 361647, 417285, 493155, 569025, 602745, 695475, 821925, 1004575, 1084941, 1251855, 1479465, 1808235, 2086425, 2465775, 3013725, 3254823, 5424705, 6259275, 7397325, 9041175, 16274115, 27123525, 81370575]

約数ペア:

[(1, 81370575), (3, 27123525), (5, 16274115), (9, 9041175), (11, 7397325), (13, 6259275), (15, 5424705), (25, 3254823), (27, 3013725), (33, 2465775), (39, 2086425), (45, 1808235), (55, 1479465), (65, 1251855), (75, 1084941), (81, 1004575), (99, 821925), (117, 695475), (135, 602745), (143, 569025), (165, 493155), (195, 417285), (225, 361647), (275, 295893), (281, 289575), (297, 273975), (325, 250371), (351, 231825), (405, 200915), (429, 189675), (495, 164385), (585, 139095), (675, 120549), (715, 113805), (825, 98631), (843, 96525), (891, 91325), (975, 83457), (1053, 77275), (1287, 63225), (1405, 57915), (1485, 54795), (1755, 46365), (2025, 40183), (2145, 37935), (2475, 32877), (2529, 32175), (2925, 27819), (3091, 26325), (3575, 22761), (3653, 22275), (3861, 21075), (4215, 19305), (4455, 18265), (5265, 15455), (6435, 12645), (7025, 11583), (7425, 10959), (7587, 10725), (8775, 9273)]