3978358000

素因数分解:

$2^4\times 5^3\times {\mathrm{97}}^1\times {\mathrm{20507}}^1$

素因数の和:20627

約数の個数: 80

約数和(自身を含む): 9719315424

約数和(自身を除く): 5740957424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 125, 194, 200, 250, 388, 400, 485, 500, 776, 970, 1000, 1552, 1940, 2000, 2425, 3880, 4850, 7760, 9700, 12125, 19400, 20507, 24250, 38800, 41014, 48500, 82028, 97000, 102535, 164056, 194000, 205070, 328112, 410140, 512675, 820280, 1025350, 1640560, 1989179, 2050700, 2563375, 3978358, 4101400, 5126750, 7956716, 8202800, 9945895, 10253500, 15913432, 19891790, 20507000, 31826864, 39783580, 41014000, 49729475, 79567160, 99458950, 159134320, 198917900, 248647375, 397835800, 497294750, 795671600, 994589500, 1989179000, 3978358000]

約数ペア:

[(1, 3978358000), (2, 1989179000), (4, 994589500), (5, 795671600), (8, 497294750), (10, 397835800), (16, 248647375), (20, 198917900), (25, 159134320), (40, 99458950), (50, 79567160), (80, 49729475), (97, 41014000), (100, 39783580), (125, 31826864), (194, 20507000), (200, 19891790), (250, 15913432), (388, 10253500), (400, 9945895), (485, 8202800), (500, 7956716), (776, 5126750), (970, 4101400), (1000, 3978358), (1552, 2563375), (1940, 2050700), (2000, 1989179), (2425, 1640560), (3880, 1025350), (4850, 820280), (7760, 512675), (9700, 410140), (12125, 328112), (19400, 205070), (20507, 194000), (24250, 164056), (38800, 102535), (41014, 97000), (48500, 82028)]