51491840

素因数分解:

$2^{10}\times 5^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:227

約数の個数: 88

約数和(自身を含む): 126013320

約数和(自身を除く): 74521480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 113, 128, 160, 178, 226, 256, 320, 356, 445, 452, 512, 565, 640, 712, 890, 904, 1024, 1130, 1280, 1424, 1780, 1808, 2260, 2560, 2848, 3560, 3616, 4520, 5120, 5696, 7120, 7232, 9040, 10057, 11392, 14240, 14464, 18080, 20114, 22784, 28480, 28928, 36160, 40228, 45568, 50285, 56960, 57856, 72320, 80456, 91136, 100570, 113920, 115712, 144640, 160912, 201140, 227840, 289280, 321824, 402280, 455680, 578560, 643648, 804560, 1287296, 1609120, 2574592, 3218240, 5149184, 6436480, 10298368, 12872960, 25745920, 51491840]

約数ペア:

[(1, 51491840), (2, 25745920), (4, 12872960), (5, 10298368), (8, 6436480), (10, 5149184), (16, 3218240), (20, 2574592), (32, 1609120), (40, 1287296), (64, 804560), (80, 643648), (89, 578560), (113, 455680), (128, 402280), (160, 321824), (178, 289280), (226, 227840), (256, 201140), (320, 160912), (356, 144640), (445, 115712), (452, 113920), (512, 100570), (565, 91136), (640, 80456), (712, 72320), (890, 57856), (904, 56960), (1024, 50285), (1130, 45568), (1280, 40228), (1424, 36160), (1780, 28928), (1808, 28480), (2260, 22784), (2560, 20114), (2848, 18080), (3560, 14464), (3616, 14240), (4520, 11392), (5120, 10057), (5696, 9040), (7120, 7232)]