25420040

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2659}}^1$

素因数の和:2909

約数の個数: 32

約数和(自身を含む): 57456000

約数和(自身を除く): 32035960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 2659, 4780, 5318, 9560, 10636, 13295, 21272, 26590, 53180, 106360, 635501, 1271002, 2542004, 3177505, 5084008, 6355010, 12710020, 25420040]

約数ペア:

[(1, 25420040), (2, 12710020), (4, 6355010), (5, 5084008), (8, 3177505), (10, 2542004), (20, 1271002), (40, 635501), (239, 106360), (478, 53180), (956, 26590), (1195, 21272), (1912, 13295), (2390, 10636), (2659, 9560), (4780, 5318)]