25645000

素因数分解:

$2^3\times 5^4\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:272

約数の個数: 80

約数和(自身を含む): 62979840

約数和(自身を除く): 37334840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 125, 184, 200, 223, 230, 250, 446, 460, 500, 575, 625, 892, 920, 1000, 1115, 1150, 1250, 1784, 2230, 2300, 2500, 2875, 4460, 4600, 5000, 5129, 5575, 5750, 8920, 10258, 11150, 11500, 14375, 20516, 22300, 23000, 25645, 27875, 28750, 41032, 44600, 51290, 55750, 57500, 102580, 111500, 115000, 128225, 139375, 205160, 223000, 256450, 278750, 512900, 557500, 641125, 1025800, 1115000, 1282250, 2564500, 3205625, 5129000, 6411250, 12822500, 25645000]

約数ペア:

[(1, 25645000), (2, 12822500), (4, 6411250), (5, 5129000), (8, 3205625), (10, 2564500), (20, 1282250), (23, 1115000), (25, 1025800), (40, 641125), (46, 557500), (50, 512900), (92, 278750), (100, 256450), (115, 223000), (125, 205160), (184, 139375), (200, 128225), (223, 115000), (230, 111500), (250, 102580), (446, 57500), (460, 55750), (500, 51290), (575, 44600), (625, 41032), (892, 28750), (920, 27875), (1000, 25645), (1115, 23000), (1150, 22300), (1250, 20516), (1784, 14375), (2230, 11500), (2300, 11150), (2500, 10258), (2875, 8920), (4460, 5750), (4600, 5575), (5000, 5129)]