398011905

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:383

約数の個数: 96

約数和(自身を含む): 778377600

約数和(自身を除く): 380365695

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 139, 153, 171, 197, 255, 285, 323, 417, 591, 695, 765, 855, 969, 985, 1251, 1615, 1773, 2085, 2363, 2641, 2907, 2955, 3349, 3743, 4845, 6255, 7089, 7923, 8865, 10047, 11229, 11815, 13205, 14535, 16745, 18715, 21267, 23769, 27383, 30141, 33687, 35445, 39615, 44897, 50235, 56145, 63631, 82149, 106335, 118845, 134691, 136915, 150705, 168435, 190893, 224485, 246447, 318155, 404073, 410745, 465511, 520277, 572679, 673455, 954465, 1232235, 1396533, 1560831, 2020365, 2327555, 2601385, 2863395, 4189599, 4682493, 6982665, 7804155, 8844709, 20947995, 23412465, 26534127, 44223545, 79602381, 132670635, 398011905]

約数ペア:

[(1, 398011905), (3, 132670635), (5, 79602381), (9, 44223545), (15, 26534127), (17, 23412465), (19, 20947995), (45, 8844709), (51, 7804155), (57, 6982665), (85, 4682493), (95, 4189599), (139, 2863395), (153, 2601385), (171, 2327555), (197, 2020365), (255, 1560831), (285, 1396533), (323, 1232235), (417, 954465), (591, 673455), (695, 572679), (765, 520277), (855, 465511), (969, 410745), (985, 404073), (1251, 318155), (1615, 246447), (1773, 224485), (2085, 190893), (2363, 168435), (2641, 150705), (2907, 136915), (2955, 134691), (3349, 118845), (3743, 106335), (4845, 82149), (6255, 63631), (7089, 56145), (7923, 50235), (8865, 44897), (10047, 39615), (11229, 35445), (11815, 33687), (13205, 30141), (14535, 27383), (16745, 23769), (18715, 21267)]