2012121945

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^3\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:165

約数の個数: 128

約数和(自身を含む): 3940876800

約数和(自身を除く): 1928754855

約数列:

[1, 3, 5, 9, 15, 19, 27, 41, 45, 53, 57, 95, 123, 135, 159, 171, 205, 265, 285, 361, 369, 477, 513, 615, 779, 795, 855, 1007, 1083, 1107, 1431, 1805, 1845, 2173, 2337, 2385, 2565, 3021, 3249, 3895, 5035, 5415, 5535, 6519, 6859, 7011, 7155, 9063, 9747, 10865, 11685, 14801, 15105, 16245, 19133, 19557, 20577, 21033, 27189, 32595, 34295, 35055, 41287, 44403, 45315, 48735, 57399, 58671, 61731, 74005, 95665, 97785, 102885, 105165, 123861, 133209, 135945, 172197, 185193, 206435, 222015, 281219, 286995, 293355, 308655, 363527, 371583, 399627, 516591, 619305, 666045, 784453, 843657, 860985, 925965, 1090581, 1114749, 1406095, 1817635, 1857915, 1998135, 2353359, 2530971, 2582955, 3271743, 3922265, 4218285, 5452905, 5573745, 7060077, 7592913, 9815229, 11766795, 12654855, 14904607, 16358715, 21180231, 35300385, 37964565, 44713821, 49076145, 74523035, 105901155, 134141463, 223569105, 402424389, 670707315, 2012121945]

約数ペア:

[(1, 2012121945), (3, 670707315), (5, 402424389), (9, 223569105), (15, 134141463), (19, 105901155), (27, 74523035), (41, 49076145), (45, 44713821), (53, 37964565), (57, 35300385), (95, 21180231), (123, 16358715), (135, 14904607), (159, 12654855), (171, 11766795), (205, 9815229), (265, 7592913), (285, 7060077), (361, 5573745), (369, 5452905), (477, 4218285), (513, 3922265), (615, 3271743), (779, 2582955), (795, 2530971), (855, 2353359), (1007, 1998135), (1083, 1857915), (1107, 1817635), (1431, 1406095), (1805, 1114749), (1845, 1090581), (2173, 925965), (2337, 860985), (2385, 843657), (2565, 784453), (3021, 666045), (3249, 619305), (3895, 516591), (5035, 399627), (5415, 371583), (5535, 363527), (6519, 308655), (6859, 293355), (7011, 286995), (7155, 281219), (9063, 222015), (9747, 206435), (10865, 185193), (11685, 172197), (14801, 135945), (15105, 133209), (16245, 123861), (19133, 105165), (19557, 102885), (20577, 97785), (21033, 95665), (27189, 74005), (32595, 61731), (34295, 58671), (35055, 57399), (41287, 48735), (44403, 45315)]