400955320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{4493}}^1$

素因数の和:4624

約数の個数: 64

約数和(自身を含む): 951289920

約数和(自身を除く): 550334600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 97, 115, 184, 194, 230, 388, 460, 485, 776, 920, 970, 1940, 2231, 3880, 4462, 4493, 8924, 8986, 11155, 17848, 17972, 22310, 22465, 35944, 44620, 44930, 89240, 89860, 103339, 179720, 206678, 413356, 435821, 516695, 826712, 871642, 1033390, 1743284, 2066780, 2179105, 3486568, 4133560, 4358210, 8716420, 10023883, 17432840, 20047766, 40095532, 50119415, 80191064, 100238830, 200477660, 400955320]

約数ペア:

[(1, 400955320), (2, 200477660), (4, 100238830), (5, 80191064), (8, 50119415), (10, 40095532), (20, 20047766), (23, 17432840), (40, 10023883), (46, 8716420), (92, 4358210), (97, 4133560), (115, 3486568), (184, 2179105), (194, 2066780), (230, 1743284), (388, 1033390), (460, 871642), (485, 826712), (776, 516695), (920, 435821), (970, 413356), (1940, 206678), (2231, 179720), (3880, 103339), (4462, 89860), (4493, 89240), (8924, 44930), (8986, 44620), (11155, 35944), (17848, 22465), (17972, 22310)]