409804540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{6869}}^1$

素因数の和:7054

約数の個数: 48

約数和(自身を含む): 911786400

約数和(自身を除く): 501981860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 157, 190, 314, 380, 628, 785, 1570, 2983, 3140, 5966, 6869, 11932, 13738, 14915, 27476, 29830, 34345, 59660, 68690, 130511, 137380, 261022, 522044, 652555, 1078433, 1305110, 2156866, 2610220, 4313732, 5392165, 10784330, 20490227, 21568660, 40980454, 81960908, 102451135, 204902270, 409804540]

約数ペア:

[(1, 409804540), (2, 204902270), (4, 102451135), (5, 81960908), (10, 40980454), (19, 21568660), (20, 20490227), (38, 10784330), (76, 5392165), (95, 4313732), (157, 2610220), (190, 2156866), (314, 1305110), (380, 1078433), (628, 652555), (785, 522044), (1570, 261022), (2983, 137380), (3140, 130511), (5966, 68690), (6869, 59660), (11932, 34345), (13738, 29830), (14915, 27476)]