407932160

素因数分解:

$2^8\times 5^1\times {\mathrm{421}}^1\times {\mathrm{757}}^1$

素因数の和:1199

約数の個数: 72

約数和(自身を含む): 980739816

約数和(自身を除く): 572807656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 421, 640, 757, 842, 1280, 1514, 1684, 2105, 3028, 3368, 3785, 4210, 6056, 6736, 7570, 8420, 12112, 13472, 15140, 16840, 24224, 26944, 30280, 33680, 48448, 53888, 60560, 67360, 96896, 107776, 121120, 134720, 193792, 242240, 269440, 318697, 484480, 538880, 637394, 968960, 1274788, 1593485, 2549576, 3186970, 5099152, 6373940, 10198304, 12747880, 20396608, 25495760, 40793216, 50991520, 81586432, 101983040, 203966080, 407932160]

約数ペア:

[(1, 407932160), (2, 203966080), (4, 101983040), (5, 81586432), (8, 50991520), (10, 40793216), (16, 25495760), (20, 20396608), (32, 12747880), (40, 10198304), (64, 6373940), (80, 5099152), (128, 3186970), (160, 2549576), (256, 1593485), (320, 1274788), (421, 968960), (640, 637394), (757, 538880), (842, 484480), (1280, 318697), (1514, 269440), (1684, 242240), (2105, 193792), (3028, 134720), (3368, 121120), (3785, 107776), (4210, 96896), (6056, 67360), (6736, 60560), (7570, 53888), (8420, 48448), (12112, 33680), (13472, 30280), (15140, 26944), (16840, 24224)]