42987420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1$

素因数の和:444

約数の個数: 144

約数和(自身を含む): 150870720

約数和(自身を除く): 107883300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 109, 126, 140, 180, 210, 218, 252, 313, 315, 327, 420, 436, 545, 626, 630, 654, 763, 939, 981, 1090, 1252, 1260, 1308, 1526, 1565, 1635, 1878, 1962, 2180, 2191, 2289, 2817, 3052, 3130, 3270, 3756, 3815, 3924, 4382, 4578, 4695, 4905, 5634, 6260, 6540, 6573, 6867, 7630, 8764, 9156, 9390, 9810, 10955, 11268, 11445, 13146, 13734, 14085, 15260, 18780, 19620, 19719, 21910, 22890, 26292, 27468, 28170, 32865, 34117, 34335, 39438, 43820, 45780, 56340, 65730, 68234, 68670, 78876, 98595, 102351, 131460, 136468, 137340, 170585, 197190, 204702, 238819, 307053, 341170, 394380, 409404, 477638, 511755, 614106, 682340, 716457, 955276, 1023510, 1194095, 1228212, 1432914, 1535265, 2047020, 2149371, 2388190, 2865828, 3070530, 3582285, 4298742, 4776380, 6141060, 7164570, 8597484, 10746855, 14329140, 21493710, 42987420]

約数ペア:

[(1, 42987420), (2, 21493710), (3, 14329140), (4, 10746855), (5, 8597484), (6, 7164570), (7, 6141060), (9, 4776380), (10, 4298742), (12, 3582285), (14, 3070530), (15, 2865828), (18, 2388190), (20, 2149371), (21, 2047020), (28, 1535265), (30, 1432914), (35, 1228212), (36, 1194095), (42, 1023510), (45, 955276), (60, 716457), (63, 682340), (70, 614106), (84, 511755), (90, 477638), (105, 409404), (109, 394380), (126, 341170), (140, 307053), (180, 238819), (210, 204702), (218, 197190), (252, 170585), (313, 137340), (315, 136468), (327, 131460), (420, 102351), (436, 98595), (545, 78876), (626, 68670), (630, 68234), (654, 65730), (763, 56340), (939, 45780), (981, 43820), (1090, 39438), (1252, 34335), (1260, 34117), (1308, 32865), (1526, 28170), (1565, 27468), (1635, 26292), (1878, 22890), (1962, 21910), (2180, 19719), (2191, 19620), (2289, 18780), (2817, 15260), (3052, 14085), (3130, 13734), (3270, 13146), (3756, 11445), (3815, 11268), (3924, 10955), (4382, 9810), (4578, 9390), (4695, 9156), (4905, 8764), (5634, 7630), (6260, 6867), (6540, 6573)]