31491120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{131213}}^1$

素因数の和:131229

約数の個数: 40

約数和(自身を含む): 97623216

約数和(自身を除く): 66132096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 131213, 262426, 393639, 524852, 656065, 787278, 1049704, 1312130, 1574556, 1968195, 2099408, 2624260, 3149112, 3936390, 5248520, 6298224, 7872780, 10497040, 15745560, 31491120]

約数ペア:

[(1, 31491120), (2, 15745560), (3, 10497040), (4, 7872780), (5, 6298224), (6, 5248520), (8, 3936390), (10, 3149112), (12, 2624260), (15, 2099408), (16, 1968195), (20, 1574556), (24, 1312130), (30, 1049704), (40, 787278), (48, 656065), (60, 524852), (80, 393639), (120, 262426), (240, 131213)]