128568650

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{541}}^1$

素因数の和:664

約数の個数: 72

約数和(自身を含む): 281567916

約数和(自身を除く): 152999266

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 97, 98, 175, 194, 245, 350, 485, 490, 541, 679, 970, 1082, 1225, 1358, 2425, 2450, 2705, 3395, 3787, 4753, 4850, 5410, 6790, 7574, 9506, 13525, 16975, 18935, 23765, 26509, 27050, 33950, 37870, 47530, 52477, 53018, 94675, 104954, 118825, 132545, 189350, 237650, 262385, 265090, 367339, 524770, 662725, 734678, 1311925, 1325450, 1836695, 2571373, 2623850, 3673390, 5142746, 9183475, 12856865, 18366950, 25713730, 64284325, 128568650]

約数ペア:

[(1, 128568650), (2, 64284325), (5, 25713730), (7, 18366950), (10, 12856865), (14, 9183475), (25, 5142746), (35, 3673390), (49, 2623850), (50, 2571373), (70, 1836695), (97, 1325450), (98, 1311925), (175, 734678), (194, 662725), (245, 524770), (350, 367339), (485, 265090), (490, 262385), (541, 237650), (679, 189350), (970, 132545), (1082, 118825), (1225, 104954), (1358, 94675), (2425, 53018), (2450, 52477), (2705, 47530), (3395, 37870), (3787, 33950), (4753, 27050), (4850, 26509), (5410, 23765), (6790, 18935), (7574, 16975), (9506, 13525)]