256939920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2273}}^1$

素因数の和:2449

約数の個数: 120

約数和(自身を含む): 868768056

約数和(自身を除く): 611828136

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 157, 180, 240, 314, 360, 471, 628, 720, 785, 942, 1256, 1413, 1570, 1884, 2273, 2355, 2512, 2826, 3140, 3768, 4546, 4710, 5652, 6280, 6819, 7065, 7536, 9092, 9420, 11304, 11365, 12560, 13638, 14130, 18184, 18840, 20457, 22608, 22730, 27276, 28260, 34095, 36368, 37680, 40914, 45460, 54552, 56520, 68190, 81828, 90920, 102285, 109104, 113040, 136380, 163656, 181840, 204570, 272760, 327312, 356861, 409140, 545520, 713722, 818280, 1070583, 1427444, 1636560, 1784305, 2141166, 2854888, 3211749, 3568610, 4282332, 5352915, 5709776, 6423498, 7137220, 8564664, 10705830, 12846996, 14274440, 16058745, 17129328, 21411660, 25693992, 28548880, 32117490, 42823320, 51387984, 64234980, 85646640, 128469960, 256939920]

約数ペア:

[(1, 256939920), (2, 128469960), (3, 85646640), (4, 64234980), (5, 51387984), (6, 42823320), (8, 32117490), (9, 28548880), (10, 25693992), (12, 21411660), (15, 17129328), (16, 16058745), (18, 14274440), (20, 12846996), (24, 10705830), (30, 8564664), (36, 7137220), (40, 6423498), (45, 5709776), (48, 5352915), (60, 4282332), (72, 3568610), (80, 3211749), (90, 2854888), (120, 2141166), (144, 1784305), (157, 1636560), (180, 1427444), (240, 1070583), (314, 818280), (360, 713722), (471, 545520), (628, 409140), (720, 356861), (785, 327312), (942, 272760), (1256, 204570), (1413, 181840), (1570, 163656), (1884, 136380), (2273, 113040), (2355, 109104), (2512, 102285), (2826, 90920), (3140, 81828), (3768, 68190), (4546, 56520), (4710, 54552), (5652, 45460), (6280, 40914), (6819, 37680), (7065, 36368), (7536, 34095), (9092, 28260), (9420, 27276), (11304, 22730), (11365, 22608), (12560, 20457), (13638, 18840), (14130, 18184)]