399395000

素因数分解:

$2^3\times 5^4\times {\mathrm{23}}^2\times {\mathrm{151}}^1$

素因数の和:223

約数の個数: 120

約数和(自身を含む): 984716040

約数和(自身を除く): 585321040

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 125, 151, 184, 200, 230, 250, 302, 460, 500, 529, 575, 604, 625, 755, 920, 1000, 1058, 1150, 1208, 1250, 1510, 2116, 2300, 2500, 2645, 2875, 3020, 3473, 3775, 4232, 4600, 5000, 5290, 5750, 6040, 6946, 7550, 10580, 11500, 13225, 13892, 14375, 15100, 17365, 18875, 21160, 23000, 26450, 27784, 28750, 30200, 34730, 37750, 52900, 57500, 66125, 69460, 75500, 79879, 86825, 94375, 105800, 115000, 132250, 138920, 151000, 159758, 173650, 188750, 264500, 319516, 330625, 347300, 377500, 399395, 434125, 529000, 639032, 661250, 694600, 755000, 798790, 868250, 1322500, 1597580, 1736500, 1996975, 2170625, 2645000, 3195160, 3473000, 3993950, 4341250, 7987900, 8682500, 9984875, 15975800, 17365000, 19969750, 39939500, 49924375, 79879000, 99848750, 199697500, 399395000]

約数ペア:

[(1, 399395000), (2, 199697500), (4, 99848750), (5, 79879000), (8, 49924375), (10, 39939500), (20, 19969750), (23, 17365000), (25, 15975800), (40, 9984875), (46, 8682500), (50, 7987900), (92, 4341250), (100, 3993950), (115, 3473000), (125, 3195160), (151, 2645000), (184, 2170625), (200, 1996975), (230, 1736500), (250, 1597580), (302, 1322500), (460, 868250), (500, 798790), (529, 755000), (575, 694600), (604, 661250), (625, 639032), (755, 529000), (920, 434125), (1000, 399395), (1058, 377500), (1150, 347300), (1208, 330625), (1250, 319516), (1510, 264500), (2116, 188750), (2300, 173650), (2500, 159758), (2645, 151000), (2875, 138920), (3020, 132250), (3473, 115000), (3775, 105800), (4232, 94375), (4600, 86825), (5000, 79879), (5290, 75500), (5750, 69460), (6040, 66125), (6946, 57500), (7550, 52900), (10580, 37750), (11500, 34730), (13225, 30200), (13892, 28750), (14375, 27784), (15100, 26450), (17365, 23000), (18875, 21160)]