721112580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{617}}^1$

素因数の和:826

約数の個数: 144

約数和(自身を含む): 2256718464

約数和(自身を除く): 1535605884

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 151, 172, 180, 215, 258, 302, 387, 430, 453, 516, 604, 617, 645, 755, 774, 860, 906, 1234, 1290, 1359, 1510, 1548, 1812, 1851, 1935, 2265, 2468, 2580, 2718, 3020, 3085, 3702, 3870, 4530, 5436, 5553, 6170, 6493, 6795, 7404, 7740, 9060, 9255, 11106, 12340, 12986, 13590, 18510, 19479, 22212, 25972, 26531, 27180, 27765, 32465, 37020, 38958, 53062, 55530, 58437, 64930, 77916, 79593, 93167, 97395, 106124, 111060, 116874, 129860, 132655, 159186, 186334, 194790, 233748, 238779, 265310, 279501, 292185, 318372, 372668, 389580, 397965, 465835, 477558, 530620, 559002, 584370, 795930, 838503, 931670, 955116, 1118004, 1168740, 1193895, 1397505, 1591860, 1677006, 1863340, 2387790, 2795010, 3354012, 4006181, 4192515, 4775580, 5590020, 8012362, 8385030, 12018543, 16024724, 16770060, 20030905, 24037086, 36055629, 40061810, 48074172, 60092715, 72111258, 80123620, 120185430, 144222516, 180278145, 240370860, 360556290, 721112580]

約数ペア:

[(1, 721112580), (2, 360556290), (3, 240370860), (4, 180278145), (5, 144222516), (6, 120185430), (9, 80123620), (10, 72111258), (12, 60092715), (15, 48074172), (18, 40061810), (20, 36055629), (30, 24037086), (36, 20030905), (43, 16770060), (45, 16024724), (60, 12018543), (86, 8385030), (90, 8012362), (129, 5590020), (151, 4775580), (172, 4192515), (180, 4006181), (215, 3354012), (258, 2795010), (302, 2387790), (387, 1863340), (430, 1677006), (453, 1591860), (516, 1397505), (604, 1193895), (617, 1168740), (645, 1118004), (755, 955116), (774, 931670), (860, 838503), (906, 795930), (1234, 584370), (1290, 559002), (1359, 530620), (1510, 477558), (1548, 465835), (1812, 397965), (1851, 389580), (1935, 372668), (2265, 318372), (2468, 292185), (2580, 279501), (2718, 265310), (3020, 238779), (3085, 233748), (3702, 194790), (3870, 186334), (4530, 159186), (5436, 132655), (5553, 129860), (6170, 116874), (6493, 111060), (6795, 106124), (7404, 97395), (7740, 93167), (9060, 79593), (9255, 77916), (11106, 64930), (12340, 58437), (12986, 55530), (13590, 53062), (18510, 38958), (19479, 37020), (22212, 32465), (25972, 27765), (26531, 27180)]