28557440

素因数分解:

$2^7\times 5^1\times {\mathrm{44621}}^1$

素因数の和:44640

約数の個数: 32

約数和(自身を含む): 68271660

約数和(自身を除く): 39714220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 44621, 89242, 178484, 223105, 356968, 446210, 713936, 892420, 1427872, 1784840, 2855744, 3569680, 5711488, 7139360, 14278720, 28557440]

約数ペア:

[(1, 28557440), (2, 14278720), (4, 7139360), (5, 5711488), (8, 3569680), (10, 2855744), (16, 1784840), (20, 1427872), (32, 892420), (40, 713936), (64, 446210), (80, 356968), (128, 223105), (160, 178484), (320, 89242), (640, 44621)]