38910680

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 91601280

約数和(自身を除く): 52690600

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 61, 74, 122, 148, 185, 244, 296, 305, 370, 431, 488, 610, 740, 862, 1220, 1480, 1724, 2155, 2257, 2440, 3448, 4310, 4514, 8620, 9028, 11285, 15947, 17240, 18056, 22570, 26291, 31894, 45140, 52582, 63788, 79735, 90280, 105164, 127576, 131455, 159470, 210328, 262910, 318940, 525820, 637880, 972767, 1051640, 1945534, 3891068, 4863835, 7782136, 9727670, 19455340, 38910680]

約数ペア:

[(1, 38910680), (2, 19455340), (4, 9727670), (5, 7782136), (8, 4863835), (10, 3891068), (20, 1945534), (37, 1051640), (40, 972767), (61, 637880), (74, 525820), (122, 318940), (148, 262910), (185, 210328), (244, 159470), (296, 131455), (305, 127576), (370, 105164), (431, 90280), (488, 79735), (610, 63788), (740, 52582), (862, 45140), (1220, 31894), (1480, 26291), (1724, 22570), (2155, 18056), (2257, 17240), (2440, 15947), (3448, 11285), (4310, 9028), (4514, 8620)]