20713687600

素因数分解:

$2^4\times 5^2\times {\mathrm{137}}^1\times {\mathrm{431}}^1\times {\mathrm{877}}^1$

素因数の和:1463

約数の個数: 120

約数和(自身を含む): 50301476928

約数和(自身を除く): 29587789328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 137, 200, 274, 400, 431, 548, 685, 862, 877, 1096, 1370, 1724, 1754, 2155, 2192, 2740, 3425, 3448, 3508, 4310, 4385, 5480, 6850, 6896, 7016, 8620, 8770, 10775, 10960, 13700, 14032, 17240, 17540, 21550, 21925, 27400, 34480, 35080, 43100, 43850, 54800, 59047, 70160, 86200, 87700, 118094, 120149, 172400, 175400, 236188, 240298, 295235, 350800, 377987, 472376, 480596, 590470, 600745, 755974, 944752, 961192, 1180940, 1201490, 1476175, 1511948, 1889935, 1922384, 2361880, 2402980, 2952350, 3003725, 3023896, 3779870, 4723760, 4805960, 5904700, 6007450, 6047792, 7559740, 9449675, 9611920, 11809400, 12014900, 15119480, 18899350, 23618800, 24029800, 30238960, 37798700, 48059600, 51784219, 75597400, 103568438, 151194800, 207136876, 258921095, 414273752, 517842190, 828547504, 1035684380, 1294605475, 2071368760, 2589210950, 4142737520, 5178421900, 10356843800, 20713687600]

約数ペア:

[(1, 20713687600), (2, 10356843800), (4, 5178421900), (5, 4142737520), (8, 2589210950), (10, 2071368760), (16, 1294605475), (20, 1035684380), (25, 828547504), (40, 517842190), (50, 414273752), (80, 258921095), (100, 207136876), (137, 151194800), (200, 103568438), (274, 75597400), (400, 51784219), (431, 48059600), (548, 37798700), (685, 30238960), (862, 24029800), (877, 23618800), (1096, 18899350), (1370, 15119480), (1724, 12014900), (1754, 11809400), (2155, 9611920), (2192, 9449675), (2740, 7559740), (3425, 6047792), (3448, 6007450), (3508, 5904700), (4310, 4805960), (4385, 4723760), (5480, 3779870), (6850, 3023896), (6896, 3003725), (7016, 2952350), (8620, 2402980), (8770, 2361880), (10775, 1922384), (10960, 1889935), (13700, 1511948), (14032, 1476175), (17240, 1201490), (17540, 1180940), (21550, 961192), (21925, 944752), (27400, 755974), (34480, 600745), (35080, 590470), (43100, 480596), (43850, 472376), (54800, 377987), (59047, 350800), (70160, 295235), (86200, 240298), (87700, 236188), (118094, 175400), (120149, 172400)]