66780045

素因数分解:

$3^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 124692480

約数和(自身を除く): 57912435

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 197, 243, 279, 405, 465, 591, 729, 837, 985, 1215, 1395, 1773, 2187, 2511, 2955, 3645, 4185, 5319, 6107, 7533, 8865, 10935, 12555, 15957, 18321, 22599, 26595, 30535, 37665, 47871, 54963, 67797, 79785, 91605, 112995, 143613, 164889, 239355, 274815, 338985, 430839, 494667, 718065, 824445, 1484001, 2154195, 2473335, 4452003, 7420005, 13356009, 22260015, 66780045]

約数ペア:

[(1, 66780045), (3, 22260015), (5, 13356009), (9, 7420005), (15, 4452003), (27, 2473335), (31, 2154195), (45, 1484001), (81, 824445), (93, 718065), (135, 494667), (155, 430839), (197, 338985), (243, 274815), (279, 239355), (405, 164889), (465, 143613), (591, 112995), (729, 91605), (837, 79785), (985, 67797), (1215, 54963), (1395, 47871), (1773, 37665), (2187, 30535), (2511, 26595), (2955, 22599), (3645, 18321), (4185, 15957), (5319, 12555), (6107, 10935), (7533, 8865)]