56385540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{16487}}^1$

素因数の和:16521

約数の個数: 72

約数和(自身を含む): 180048960

約数和(自身を除く): 123663420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 16487, 32974, 49461, 65948, 82435, 98922, 148383, 164870, 197844, 247305, 296766, 313253, 329740, 494610, 593532, 626506, 741915, 939759, 989220, 1253012, 1483830, 1566265, 1879518, 2819277, 2967660, 3132530, 3759036, 4698795, 5638554, 6265060, 9397590, 11277108, 14096385, 18795180, 28192770, 56385540]

約数ペア:

[(1, 56385540), (2, 28192770), (3, 18795180), (4, 14096385), (5, 11277108), (6, 9397590), (9, 6265060), (10, 5638554), (12, 4698795), (15, 3759036), (18, 3132530), (19, 2967660), (20, 2819277), (30, 1879518), (36, 1566265), (38, 1483830), (45, 1253012), (57, 989220), (60, 939759), (76, 741915), (90, 626506), (95, 593532), (114, 494610), (171, 329740), (180, 313253), (190, 296766), (228, 247305), (285, 197844), (342, 164870), (380, 148383), (570, 98922), (684, 82435), (855, 65948), (1140, 49461), (1710, 32974), (3420, 16487)]