191819180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{137}}^2$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 470103648

約数和(自身を除く): 278284468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 137, 140, 146, 274, 292, 365, 511, 548, 685, 730, 959, 1022, 1370, 1460, 1918, 2044, 2555, 2740, 3836, 4795, 5110, 9590, 10001, 10220, 18769, 19180, 20002, 37538, 40004, 50005, 70007, 75076, 93845, 100010, 131383, 140014, 187690, 200020, 262766, 280028, 350035, 375380, 525532, 656915, 700070, 1313830, 1370137, 1400140, 2627660, 2740274, 5480548, 6850685, 9590959, 13701370, 19181918, 27402740, 38363836, 47954795, 95909590, 191819180]

約数ペア:

[(1, 191819180), (2, 95909590), (4, 47954795), (5, 38363836), (7, 27402740), (10, 19181918), (14, 13701370), (20, 9590959), (28, 6850685), (35, 5480548), (70, 2740274), (73, 2627660), (137, 1400140), (140, 1370137), (146, 1313830), (274, 700070), (292, 656915), (365, 525532), (511, 375380), (548, 350035), (685, 280028), (730, 262766), (959, 200020), (1022, 187690), (1370, 140014), (1460, 131383), (1918, 100010), (2044, 93845), (2555, 75076), (2740, 70007), (3836, 50005), (4795, 40004), (5110, 37538), (9590, 20002), (10001, 19180), (10220, 18769)]