640182720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{666857}}^1$

素因数の和:666877

約数の個数: 56

約数和(自身を含む): 2032583184

約数和(自身を除く): 1392400464

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 666857, 1333714, 2000571, 2667428, 3334285, 4001142, 5334856, 6668570, 8002284, 10002855, 10669712, 13337140, 16004568, 20005710, 21339424, 26674280, 32009136, 40011420, 42678848, 53348560, 64018272, 80022840, 106697120, 128036544, 160045680, 213394240, 320091360, 640182720]

約数ペア:

[(1, 640182720), (2, 320091360), (3, 213394240), (4, 160045680), (5, 128036544), (6, 106697120), (8, 80022840), (10, 64018272), (12, 53348560), (15, 42678848), (16, 40011420), (20, 32009136), (24, 26674280), (30, 21339424), (32, 20005710), (40, 16004568), (48, 13337140), (60, 10669712), (64, 10002855), (80, 8002284), (96, 6668570), (120, 5334856), (160, 4001142), (192, 3334285), (240, 2667428), (320, 2000571), (480, 1333714), (960, 666857)]