74405480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 172972800

約数和(自身を除く): 98567320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 181, 215, 239, 344, 362, 430, 478, 724, 860, 905, 956, 1195, 1448, 1720, 1810, 1912, 2390, 3620, 4780, 7240, 7783, 9560, 10277, 15566, 20554, 31132, 38915, 41108, 43259, 51385, 62264, 77830, 82216, 86518, 102770, 155660, 173036, 205540, 216295, 311320, 346072, 411080, 432590, 865180, 1730360, 1860137, 3720274, 7440548, 9300685, 14881096, 18601370, 37202740, 74405480]

約数ペア:

[(1, 74405480), (2, 37202740), (4, 18601370), (5, 14881096), (8, 9300685), (10, 7440548), (20, 3720274), (40, 1860137), (43, 1730360), (86, 865180), (172, 432590), (181, 411080), (215, 346072), (239, 311320), (344, 216295), (362, 205540), (430, 173036), (478, 155660), (724, 102770), (860, 86518), (905, 82216), (956, 77830), (1195, 62264), (1448, 51385), (1720, 43259), (1810, 41108), (1912, 38915), (2390, 31132), (3620, 20554), (4780, 15566), (7240, 10277), (7783, 9560)]