20554500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:286

約数の個数: 96

約数和(自身を含む): 61012224

約数和(自身を除く): 40457724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 71, 75, 100, 125, 142, 150, 193, 213, 250, 284, 300, 355, 375, 386, 426, 500, 579, 710, 750, 772, 852, 965, 1065, 1158, 1420, 1500, 1775, 1930, 2130, 2316, 2895, 3550, 3860, 4260, 4825, 5325, 5790, 7100, 8875, 9650, 10650, 11580, 13703, 14475, 17750, 19300, 21300, 24125, 26625, 27406, 28950, 35500, 41109, 48250, 53250, 54812, 57900, 68515, 72375, 82218, 96500, 106500, 137030, 144750, 164436, 205545, 274060, 289500, 342575, 411090, 685150, 822180, 1027725, 1370300, 1712875, 2055450, 3425750, 4110900, 5138625, 6851500, 10277250, 20554500]

約数ペア:

[(1, 20554500), (2, 10277250), (3, 6851500), (4, 5138625), (5, 4110900), (6, 3425750), (10, 2055450), (12, 1712875), (15, 1370300), (20, 1027725), (25, 822180), (30, 685150), (50, 411090), (60, 342575), (71, 289500), (75, 274060), (100, 205545), (125, 164436), (142, 144750), (150, 137030), (193, 106500), (213, 96500), (250, 82218), (284, 72375), (300, 68515), (355, 57900), (375, 54812), (386, 53250), (426, 48250), (500, 41109), (579, 35500), (710, 28950), (750, 27406), (772, 26625), (852, 24125), (965, 21300), (1065, 19300), (1158, 17750), (1420, 14475), (1500, 13703), (1775, 11580), (1930, 10650), (2130, 9650), (2316, 8875), (2895, 7100), (3550, 5790), (3860, 5325), (4260, 4825)]