201021615

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{719}}^1$

素因数の和:861

約数の個数: 64

約数和(自身を含む): 380160000

約数和(自身を除く): 179138385

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 109, 135, 171, 285, 327, 513, 545, 719, 855, 981, 1635, 2071, 2157, 2565, 2943, 3595, 4905, 6213, 6471, 10355, 10785, 13661, 14715, 18639, 19413, 31065, 32355, 40983, 55917, 68305, 78371, 93195, 97065, 122949, 204915, 235113, 279585, 368847, 391855, 614745, 705339, 1175565, 1489049, 1844235, 2116017, 3526695, 4467147, 7445245, 10580085, 13401441, 22335735, 40204323, 67007205, 201021615]

約数ペア:

[(1, 201021615), (3, 67007205), (5, 40204323), (9, 22335735), (15, 13401441), (19, 10580085), (27, 7445245), (45, 4467147), (57, 3526695), (95, 2116017), (109, 1844235), (135, 1489049), (171, 1175565), (285, 705339), (327, 614745), (513, 391855), (545, 368847), (719, 279585), (855, 235113), (981, 204915), (1635, 122949), (2071, 97065), (2157, 93195), (2565, 78371), (2943, 68305), (3595, 55917), (4905, 40983), (6213, 32355), (6471, 31065), (10355, 19413), (10785, 18639), (13661, 14715)]