448720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:163

約数の個数: 40

約数和(自身を含む): 1071360

約数和(自身を除く): 622640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 79, 80, 142, 158, 284, 316, 355, 395, 568, 632, 710, 790, 1136, 1264, 1420, 1580, 2840, 3160, 5609, 5680, 6320, 11218, 22436, 28045, 44872, 56090, 89744, 112180, 224360, 448720]

約数ペア:

[(1, 448720), (2, 224360), (4, 112180), (5, 89744), (8, 56090), (10, 44872), (16, 28045), (20, 22436), (40, 11218), (71, 6320), (79, 5680), (80, 5609), (142, 3160), (158, 2840), (284, 1580), (316, 1420), (355, 1264), (395, 1136), (568, 790), (632, 710)]