51157880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{811}}^1$

素因数の和:924

約数の個数: 64

約数和(自身を含む): 122774400

約数和(自身を除く): 71616520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 83, 95, 152, 166, 190, 332, 380, 415, 664, 760, 811, 830, 1577, 1622, 1660, 3154, 3244, 3320, 4055, 6308, 6488, 7885, 8110, 12616, 15409, 15770, 16220, 30818, 31540, 32440, 61636, 63080, 67313, 77045, 123272, 134626, 154090, 269252, 308180, 336565, 538504, 616360, 673130, 1278947, 1346260, 2557894, 2692520, 5115788, 6394735, 10231576, 12789470, 25578940, 51157880]

約数ペア:

[(1, 51157880), (2, 25578940), (4, 12789470), (5, 10231576), (8, 6394735), (10, 5115788), (19, 2692520), (20, 2557894), (38, 1346260), (40, 1278947), (76, 673130), (83, 616360), (95, 538504), (152, 336565), (166, 308180), (190, 269252), (332, 154090), (380, 134626), (415, 123272), (664, 77045), (760, 67313), (811, 63080), (830, 61636), (1577, 32440), (1622, 31540), (1660, 30818), (3154, 16220), (3244, 15770), (3320, 15409), (4055, 12616), (6308, 8110), (6488, 7885)]