28706990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{9601}}^1$

素因数の和:9644

約数の個数: 32

約数和(自身を含む): 58072896

約数和(自身を除く): 29365906

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 9601, 19202, 48005, 96010, 124813, 220823, 249626, 441646, 624065, 1104115, 1248130, 2208230, 2870699, 5741398, 14353495, 28706990]

約数ペア:

[(1, 28706990), (2, 14353495), (5, 5741398), (10, 2870699), (13, 2208230), (23, 1248130), (26, 1104115), (46, 624065), (65, 441646), (115, 249626), (130, 220823), (230, 124813), (299, 96010), (598, 48005), (1495, 19202), (2990, 9601)]