28238720

素因数分解:

$2^7\times 5^1\times {\mathrm{44123}}^1$

素因数の和:44142

約数の個数: 32

約数和(自身を含む): 67509720

約数和(自身を除く): 39271000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 44123, 88246, 176492, 220615, 352984, 441230, 705968, 882460, 1411936, 1764920, 2823872, 3529840, 5647744, 7059680, 14119360, 28238720]

約数ペア:

[(1, 28238720), (2, 14119360), (4, 7059680), (5, 5647744), (8, 3529840), (10, 2823872), (16, 1764920), (20, 1411936), (32, 882460), (40, 705968), (64, 441230), (80, 352984), (128, 220615), (160, 176492), (320, 88246), (640, 44123)]