26720745

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:170

約数の個数: 64

約数和(自身を含む): 48211200

約数和(自身を除く): 21490455

約数列:

[1, 3, 5, 15, 19, 29, 53, 57, 61, 87, 95, 145, 159, 183, 265, 285, 305, 435, 551, 795, 915, 1007, 1159, 1537, 1653, 1769, 2755, 3021, 3233, 3477, 4611, 5035, 5307, 5795, 7685, 8265, 8845, 9699, 15105, 16165, 17385, 23055, 26535, 29203, 33611, 48495, 61427, 87609, 93757, 100833, 146015, 168055, 184281, 281271, 307135, 438045, 468785, 504165, 921405, 1406355, 1781383, 5344149, 8906915, 26720745]

約数ペア:

[(1, 26720745), (3, 8906915), (5, 5344149), (15, 1781383), (19, 1406355), (29, 921405), (53, 504165), (57, 468785), (61, 438045), (87, 307135), (95, 281271), (145, 184281), (159, 168055), (183, 146015), (265, 100833), (285, 93757), (305, 87609), (435, 61427), (551, 48495), (795, 33611), (915, 29203), (1007, 26535), (1159, 23055), (1537, 17385), (1653, 16165), (1769, 15105), (2755, 9699), (3021, 8845), (3233, 8265), (3477, 7685), (4611, 5795), (5035, 5307)]