28397440

素因数分解:

$2^7\times 5^1\times {\mathrm{44371}}^1$

素因数の和:44390

約数の個数: 32

約数和(自身を含む): 67889160

約数和(自身を除く): 39491720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 44371, 88742, 177484, 221855, 354968, 443710, 709936, 887420, 1419872, 1774840, 2839744, 3549680, 5679488, 7099360, 14198720, 28397440]

約数ペア:

[(1, 28397440), (2, 14198720), (4, 7099360), (5, 5679488), (8, 3549680), (10, 2839744), (16, 1774840), (20, 1419872), (32, 887420), (40, 709936), (64, 443710), (80, 354968), (128, 221855), (160, 177484), (320, 88742), (640, 44371)]