89038720

素因数分解:

$2^7\times 5^1\times {\mathrm{139123}}^1$

素因数の和:139142

約数の個数: 32

約数和(自身を含む): 212859720

約数和(自身を除く): 123821000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 139123, 278246, 556492, 695615, 1112984, 1391230, 2225968, 2782460, 4451936, 5564920, 8903872, 11129840, 17807744, 22259680, 44519360, 89038720]

約数ペア:

[(1, 89038720), (2, 44519360), (4, 22259680), (5, 17807744), (8, 11129840), (10, 8903872), (16, 5564920), (20, 4451936), (32, 2782460), (40, 2225968), (64, 1391230), (80, 1112984), (128, 695615), (160, 556492), (320, 278246), (640, 139123)]