207648180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1783}}^1$

素因数の和:2445

約数の個数: 72

約数和(自身を含む): 631193472

約数和(自身を除く): 423545292

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 647, 1294, 1783, 1941, 2588, 3235, 3566, 3882, 5349, 5823, 6470, 7132, 7764, 8915, 9705, 10698, 11646, 12940, 16047, 17830, 19410, 21396, 23292, 26745, 29115, 32094, 35660, 38820, 53490, 58230, 64188, 80235, 106980, 116460, 160470, 320940, 1153601, 2307202, 3460803, 4614404, 5768005, 6921606, 10382409, 11536010, 13843212, 17304015, 20764818, 23072020, 34608030, 41529636, 51912045, 69216060, 103824090, 207648180]

約数ペア:

[(1, 207648180), (2, 103824090), (3, 69216060), (4, 51912045), (5, 41529636), (6, 34608030), (9, 23072020), (10, 20764818), (12, 17304015), (15, 13843212), (18, 11536010), (20, 10382409), (30, 6921606), (36, 5768005), (45, 4614404), (60, 3460803), (90, 2307202), (180, 1153601), (647, 320940), (1294, 160470), (1783, 116460), (1941, 106980), (2588, 80235), (3235, 64188), (3566, 58230), (3882, 53490), (5349, 38820), (5823, 35660), (6470, 32094), (7132, 29115), (7764, 26745), (8915, 23292), (9705, 21396), (10698, 19410), (11646, 17830), (12940, 16047)]