16804789425

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{61879}}^1$

素因数の和:61983

約数の個数: 72

約数和(自身を含む): 32319181440

約数和(自身を除く): 15514392015

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 71, 75, 85, 153, 213, 225, 255, 355, 425, 639, 765, 1065, 1207, 1275, 1775, 3195, 3621, 3825, 5325, 6035, 10863, 15975, 18105, 30175, 54315, 61879, 90525, 185637, 271575, 309395, 556911, 928185, 1051943, 1546975, 2784555, 3155829, 4393409, 4640925, 5259715, 9467487, 13180227, 13922775, 15779145, 21967045, 26298575, 39540681, 47337435, 65901135, 74687953, 78895725, 109835225, 197703405, 224063859, 236687175, 329505675, 373439765, 672191577, 988517025, 1120319295, 1867198825, 3360957885, 5601596475, 16804789425]

約数ペア:

[(1, 16804789425), (3, 5601596475), (5, 3360957885), (9, 1867198825), (15, 1120319295), (17, 988517025), (25, 672191577), (45, 373439765), (51, 329505675), (71, 236687175), (75, 224063859), (85, 197703405), (153, 109835225), (213, 78895725), (225, 74687953), (255, 65901135), (355, 47337435), (425, 39540681), (639, 26298575), (765, 21967045), (1065, 15779145), (1207, 13922775), (1275, 13180227), (1775, 9467487), (3195, 5259715), (3621, 4640925), (3825, 4393409), (5325, 3155829), (6035, 2784555), (10863, 1546975), (15975, 1051943), (18105, 928185), (30175, 556911), (54315, 309395), (61879, 271575), (90525, 185637)]