12851600

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^2\times {\mathrm{89}}^1$

素因数の和:145

約数の個数: 90

約数和(自身を含む): 32952690

約数和(自身を除く): 20101090

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 89, 95, 100, 152, 178, 190, 200, 304, 356, 361, 380, 400, 445, 475, 712, 722, 760, 890, 950, 1424, 1444, 1520, 1691, 1780, 1805, 1900, 2225, 2888, 3382, 3560, 3610, 3800, 4450, 5776, 6764, 7120, 7220, 7600, 8455, 8900, 9025, 13528, 14440, 16910, 17800, 18050, 27056, 28880, 32129, 33820, 35600, 36100, 42275, 64258, 67640, 72200, 84550, 128516, 135280, 144400, 160645, 169100, 257032, 321290, 338200, 514064, 642580, 676400, 803225, 1285160, 1606450, 2570320, 3212900, 6425800, 12851600]

約数ペア:

[(1, 12851600), (2, 6425800), (4, 3212900), (5, 2570320), (8, 1606450), (10, 1285160), (16, 803225), (19, 676400), (20, 642580), (25, 514064), (38, 338200), (40, 321290), (50, 257032), (76, 169100), (80, 160645), (89, 144400), (95, 135280), (100, 128516), (152, 84550), (178, 72200), (190, 67640), (200, 64258), (304, 42275), (356, 36100), (361, 35600), (380, 33820), (400, 32129), (445, 28880), (475, 27056), (712, 18050), (722, 17800), (760, 16910), (890, 14440), (950, 13528), (1424, 9025), (1444, 8900), (1520, 8455), (1691, 7600), (1780, 7220), (1805, 7120), (1900, 6764), (2225, 5776), (2888, 4450), (3382, 3800), (3560, 3610)]