180904995

素因数分解:

$3^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1601}}^1$

素因数の和:1655

約数の個数: 56

約数和(自身を含む): 336189312

約数和(自身を除く): 155284317

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 243, 279, 405, 465, 729, 837, 1215, 1395, 1601, 2511, 3645, 4185, 4803, 7533, 8005, 12555, 14409, 22599, 24015, 37665, 43227, 49631, 72045, 112995, 129681, 148893, 216135, 248155, 389043, 446679, 648405, 744465, 1167129, 1340037, 1945215, 2233395, 4020111, 5835645, 6700185, 12060333, 20100555, 36180999, 60301665, 180904995]

約数ペア:

[(1, 180904995), (3, 60301665), (5, 36180999), (9, 20100555), (15, 12060333), (27, 6700185), (31, 5835645), (45, 4020111), (81, 2233395), (93, 1945215), (135, 1340037), (155, 1167129), (243, 744465), (279, 648405), (405, 446679), (465, 389043), (729, 248155), (837, 216135), (1215, 148893), (1395, 129681), (1601, 112995), (2511, 72045), (3645, 49631), (4185, 43227), (4803, 37665), (7533, 24015), (8005, 22599), (12555, 14409)]