390240080

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2383}}^1$

素因数の和:2508

約数の個数: 80

約数和(自身を含む): 957795840

約数和(自身を除く): 567555760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 89, 92, 115, 178, 184, 230, 356, 368, 445, 460, 712, 890, 920, 1424, 1780, 1840, 2047, 2383, 3560, 4094, 4766, 7120, 8188, 9532, 10235, 11915, 16376, 19064, 20470, 23830, 32752, 38128, 40940, 47660, 54809, 81880, 95320, 109618, 163760, 190640, 212087, 219236, 274045, 424174, 438472, 548090, 848348, 876944, 1060435, 1096180, 1696696, 2120870, 2192360, 3393392, 4241740, 4384720, 4878001, 8483480, 9756002, 16966960, 19512004, 24390005, 39024008, 48780010, 78048016, 97560020, 195120040, 390240080]

約数ペア:

[(1, 390240080), (2, 195120040), (4, 97560020), (5, 78048016), (8, 48780010), (10, 39024008), (16, 24390005), (20, 19512004), (23, 16966960), (40, 9756002), (46, 8483480), (80, 4878001), (89, 4384720), (92, 4241740), (115, 3393392), (178, 2192360), (184, 2120870), (230, 1696696), (356, 1096180), (368, 1060435), (445, 876944), (460, 848348), (712, 548090), (890, 438472), (920, 424174), (1424, 274045), (1780, 219236), (1840, 212087), (2047, 190640), (2383, 163760), (3560, 109618), (4094, 95320), (4766, 81880), (7120, 54809), (8188, 47660), (9532, 40940), (10235, 38128), (11915, 32752), (16376, 23830), (19064, 20470)]