212312925

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{787}}^1$

素因数の和:923

約数の個数: 72

約数和(自身を含む): 419184480

約数和(自身を除く): 206871555

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 109, 165, 225, 275, 327, 495, 545, 787, 825, 981, 1199, 1635, 2361, 2475, 2725, 3597, 3935, 4905, 5995, 7083, 8175, 8657, 10791, 11805, 17985, 19675, 24525, 25971, 29975, 35415, 43285, 53955, 59025, 77913, 85783, 89925, 129855, 177075, 216425, 257349, 269775, 389565, 428915, 649275, 772047, 943613, 1286745, 1947825, 2144575, 2830839, 3860235, 4718065, 6433725, 8492517, 14154195, 19301175, 23590325, 42462585, 70770975, 212312925]

約数ペア:

[(1, 212312925), (3, 70770975), (5, 42462585), (9, 23590325), (11, 19301175), (15, 14154195), (25, 8492517), (33, 6433725), (45, 4718065), (55, 3860235), (75, 2830839), (99, 2144575), (109, 1947825), (165, 1286745), (225, 943613), (275, 772047), (327, 649275), (495, 428915), (545, 389565), (787, 269775), (825, 257349), (981, 216425), (1199, 177075), (1635, 129855), (2361, 89925), (2475, 85783), (2725, 77913), (3597, 59025), (3935, 53955), (4905, 43285), (5995, 35415), (7083, 29975), (8175, 25971), (8657, 24525), (10791, 19675), (11805, 17985)]