79981020

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{2351}}^1$

素因数の和:2382

約数の個数: 144

約数和(自身を含む): 287659008

約数和(自身を除く): 207677988

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 243, 252, 270, 315, 324, 378, 405, 420, 486, 540, 567, 630, 756, 810, 945, 972, 1134, 1215, 1260, 1620, 1701, 1890, 2268, 2351, 2430, 2835, 3402, 3780, 4702, 4860, 5670, 6804, 7053, 8505, 9404, 11340, 11755, 14106, 16457, 17010, 21159, 23510, 28212, 32914, 34020, 35265, 42318, 47020, 49371, 63477, 65828, 70530, 82285, 84636, 98742, 105795, 126954, 141060, 148113, 164570, 190431, 197484, 211590, 246855, 253908, 296226, 317385, 329140, 380862, 423180, 444339, 493710, 571293, 592452, 634770, 740565, 761724, 888678, 952155, 987420, 1142586, 1269540, 1333017, 1481130, 1777356, 1904310, 2221695, 2285172, 2666034, 2856465, 2962260, 3808620, 3999051, 4443390, 5332068, 5712930, 6665085, 7998102, 8886780, 11425860, 13330170, 15996204, 19995255, 26660340, 39990510, 79981020]

約数ペア:

[(1, 79981020), (2, 39990510), (3, 26660340), (4, 19995255), (5, 15996204), (6, 13330170), (7, 11425860), (9, 8886780), (10, 7998102), (12, 6665085), (14, 5712930), (15, 5332068), (18, 4443390), (20, 3999051), (21, 3808620), (27, 2962260), (28, 2856465), (30, 2666034), (35, 2285172), (36, 2221695), (42, 1904310), (45, 1777356), (54, 1481130), (60, 1333017), (63, 1269540), (70, 1142586), (81, 987420), (84, 952155), (90, 888678), (105, 761724), (108, 740565), (126, 634770), (135, 592452), (140, 571293), (162, 493710), (180, 444339), (189, 423180), (210, 380862), (243, 329140), (252, 317385), (270, 296226), (315, 253908), (324, 246855), (378, 211590), (405, 197484), (420, 190431), (486, 164570), (540, 148113), (567, 141060), (630, 126954), (756, 105795), (810, 98742), (945, 84636), (972, 82285), (1134, 70530), (1215, 65828), (1260, 63477), (1620, 49371), (1701, 47020), (1890, 42318), (2268, 35265), (2351, 34020), (2430, 32914), (2835, 28212), (3402, 23510), (3780, 21159), (4702, 17010), (4860, 16457), (5670, 14106), (6804, 11755), (7053, 11340), (8505, 9404)]