77680820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:417

約数の個数: 96

約数和(自身を含む): 199729152

約数和(自身を除く): 122048332

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 127, 140, 170, 238, 254, 257, 340, 476, 508, 514, 595, 635, 889, 1028, 1190, 1270, 1285, 1778, 1799, 2159, 2380, 2540, 2570, 3556, 3598, 4318, 4369, 4445, 5140, 7196, 8636, 8738, 8890, 8995, 10795, 15113, 17476, 17780, 17990, 21590, 21845, 30226, 30583, 32639, 35980, 43180, 43690, 60452, 61166, 65278, 75565, 87380, 122332, 130556, 151130, 152915, 163195, 228473, 302260, 305830, 326390, 456946, 554863, 611660, 652780, 913892, 1109726, 1142365, 2219452, 2284730, 2774315, 3884041, 4569460, 5548630, 7768082, 11097260, 15536164, 19420205, 38840410, 77680820]

約数ペア:

[(1, 77680820), (2, 38840410), (4, 19420205), (5, 15536164), (7, 11097260), (10, 7768082), (14, 5548630), (17, 4569460), (20, 3884041), (28, 2774315), (34, 2284730), (35, 2219452), (68, 1142365), (70, 1109726), (85, 913892), (119, 652780), (127, 611660), (140, 554863), (170, 456946), (238, 326390), (254, 305830), (257, 302260), (340, 228473), (476, 163195), (508, 152915), (514, 151130), (595, 130556), (635, 122332), (889, 87380), (1028, 75565), (1190, 65278), (1270, 61166), (1285, 60452), (1778, 43690), (1799, 43180), (2159, 35980), (2380, 32639), (2540, 30583), (2570, 30226), (3556, 21845), (3598, 21590), (4318, 17990), (4369, 17780), (4445, 17476), (5140, 15113), (7196, 10795), (8636, 8995), (8738, 8890)]