8397440

素因数分解:

$2^7\times 5^1\times {\mathrm{13121}}^1$

素因数の和:13140

約数の個数: 32

約数和(自身を含む): 20076660

約数和(自身を除く): 11679220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 13121, 26242, 52484, 65605, 104968, 131210, 209936, 262420, 419872, 524840, 839744, 1049680, 1679488, 2099360, 4198720, 8397440]

約数ペア:

[(1, 8397440), (2, 4198720), (4, 2099360), (5, 1679488), (8, 1049680), (10, 839744), (16, 524840), (20, 419872), (32, 262420), (40, 209936), (64, 131210), (80, 104968), (128, 65605), (160, 52484), (320, 26242), (640, 13121)]