1991200

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:170

約数の個数: 72

約数和(自身を含む): 5155920

約数和(自身を除く): 3164720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 76, 80, 95, 100, 131, 152, 160, 190, 200, 262, 304, 380, 400, 475, 524, 608, 655, 760, 800, 950, 1048, 1310, 1520, 1900, 2096, 2489, 2620, 3040, 3275, 3800, 4192, 4978, 5240, 6550, 7600, 9956, 10480, 12445, 13100, 15200, 19912, 20960, 24890, 26200, 39824, 49780, 52400, 62225, 79648, 99560, 104800, 124450, 199120, 248900, 398240, 497800, 995600, 1991200]

約数ペア:

[(1, 1991200), (2, 995600), (4, 497800), (5, 398240), (8, 248900), (10, 199120), (16, 124450), (19, 104800), (20, 99560), (25, 79648), (32, 62225), (38, 52400), (40, 49780), (50, 39824), (76, 26200), (80, 24890), (95, 20960), (100, 19912), (131, 15200), (152, 13100), (160, 12445), (190, 10480), (200, 9956), (262, 7600), (304, 6550), (380, 5240), (400, 4978), (475, 4192), (524, 3800), (608, 3275), (655, 3040), (760, 2620), (800, 2489), (950, 2096), (1048, 1900), (1310, 1520)]