28797100

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 66033968

約数和(自身を除く): 37236868

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 43, 50, 74, 86, 100, 148, 172, 181, 185, 215, 362, 370, 430, 724, 740, 860, 905, 925, 1075, 1591, 1810, 1850, 2150, 3182, 3620, 3700, 4300, 4525, 6364, 6697, 7783, 7955, 9050, 13394, 15566, 15910, 18100, 26788, 31132, 31820, 33485, 38915, 39775, 66970, 77830, 79550, 133940, 155660, 159100, 167425, 194575, 287971, 334850, 389150, 575942, 669700, 778300, 1151884, 1439855, 2879710, 5759420, 7199275, 14398550, 28797100]

約数ペア:

[(1, 28797100), (2, 14398550), (4, 7199275), (5, 5759420), (10, 2879710), (20, 1439855), (25, 1151884), (37, 778300), (43, 669700), (50, 575942), (74, 389150), (86, 334850), (100, 287971), (148, 194575), (172, 167425), (181, 159100), (185, 155660), (215, 133940), (362, 79550), (370, 77830), (430, 66970), (724, 39775), (740, 38915), (860, 33485), (905, 31820), (925, 31132), (1075, 26788), (1591, 18100), (1810, 15910), (1850, 15566), (2150, 13394), (3182, 9050), (3620, 7955), (3700, 7783), (4300, 6697), (4525, 6364)]