18878300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 47392800

約数和(自身を除く): 28514500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 149, 175, 181, 298, 350, 362, 596, 700, 724, 745, 905, 1043, 1267, 1490, 1810, 2086, 2534, 2980, 3620, 3725, 4172, 4525, 5068, 5215, 6335, 7450, 9050, 10430, 12670, 14900, 18100, 20860, 25340, 26075, 26969, 31675, 52150, 53938, 63350, 104300, 107876, 126700, 134845, 188783, 269690, 377566, 539380, 674225, 755132, 943915, 1348450, 1887830, 2696900, 3775660, 4719575, 9439150, 18878300]

約数ペア:

[(1, 18878300), (2, 9439150), (4, 4719575), (5, 3775660), (7, 2696900), (10, 1887830), (14, 1348450), (20, 943915), (25, 755132), (28, 674225), (35, 539380), (50, 377566), (70, 269690), (100, 188783), (140, 134845), (149, 126700), (175, 107876), (181, 104300), (298, 63350), (350, 53938), (362, 52150), (596, 31675), (700, 26969), (724, 26075), (745, 25340), (905, 20860), (1043, 18100), (1267, 14900), (1490, 12670), (1810, 10430), (2086, 9050), (2534, 7450), (2980, 6335), (3620, 5215), (3725, 5068), (4172, 4525)]