720885750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{691}}^1$

素因数の和:831

約数の個数: 128

約数和(自身を含む): 1958681088

約数和(自身を除く): 1237795338

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 107, 125, 130, 150, 195, 214, 250, 321, 325, 375, 390, 535, 642, 650, 691, 750, 975, 1070, 1382, 1391, 1605, 1625, 1950, 2073, 2675, 2782, 3210, 3250, 3455, 4146, 4173, 4875, 5350, 6910, 6955, 8025, 8346, 8983, 9750, 10365, 13375, 13910, 16050, 17275, 17966, 20730, 20865, 26750, 26949, 34550, 34775, 40125, 41730, 44915, 51825, 53898, 69550, 73937, 80250, 86375, 89830, 103650, 104325, 134745, 147874, 172750, 173875, 208650, 221811, 224575, 259125, 269490, 347750, 369685, 443622, 449150, 518250, 521625, 673725, 739370, 961181, 1043250, 1109055, 1122875, 1347450, 1848425, 1922362, 2218110, 2245750, 2883543, 3368625, 3696850, 4805905, 5545275, 5767086, 6737250, 9242125, 9611810, 11090550, 14417715, 18484250, 24029525, 27726375, 28835430, 48059050, 55452750, 72088575, 120147625, 144177150, 240295250, 360442875, 720885750]

約数ペア:

[(1, 720885750), (2, 360442875), (3, 240295250), (5, 144177150), (6, 120147625), (10, 72088575), (13, 55452750), (15, 48059050), (25, 28835430), (26, 27726375), (30, 24029525), (39, 18484250), (50, 14417715), (65, 11090550), (75, 9611810), (78, 9242125), (107, 6737250), (125, 5767086), (130, 5545275), (150, 4805905), (195, 3696850), (214, 3368625), (250, 2883543), (321, 2245750), (325, 2218110), (375, 1922362), (390, 1848425), (535, 1347450), (642, 1122875), (650, 1109055), (691, 1043250), (750, 961181), (975, 739370), (1070, 673725), (1382, 521625), (1391, 518250), (1605, 449150), (1625, 443622), (1950, 369685), (2073, 347750), (2675, 269490), (2782, 259125), (3210, 224575), (3250, 221811), (3455, 208650), (4146, 173875), (4173, 172750), (4875, 147874), (5350, 134745), (6910, 104325), (6955, 103650), (8025, 89830), (8346, 86375), (8983, 80250), (9750, 73937), (10365, 69550), (13375, 53898), (13910, 51825), (16050, 44915), (17275, 41730), (17966, 40125), (20730, 34775), (20865, 34550), (26750, 26949)]