39147280

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2459}}^1$

素因数の和:2671

約数の個数: 40

約数和(自身を含む): 91512000

約数和(自身を除く): 52364720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 2459, 3184, 3980, 4918, 7960, 9836, 12295, 15920, 19672, 24590, 39344, 49180, 98360, 196720, 489341, 978682, 1957364, 2446705, 3914728, 4893410, 7829456, 9786820, 19573640, 39147280]

約数ペア:

[(1, 39147280), (2, 19573640), (4, 9786820), (5, 7829456), (8, 4893410), (10, 3914728), (16, 2446705), (20, 1957364), (40, 978682), (80, 489341), (199, 196720), (398, 98360), (796, 49180), (995, 39344), (1592, 24590), (1990, 19672), (2459, 15920), (3184, 12295), (3980, 9836), (4918, 7960)]