403719980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{5393}}^1$

素因数の和:5618

約数の個数: 48

約数和(自身を含む): 897130080

約数和(自身を除く): 493410100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 197, 380, 394, 788, 985, 1970, 3743, 3940, 5393, 7486, 10786, 14972, 18715, 21572, 26965, 37430, 53930, 74860, 102467, 107860, 204934, 409868, 512335, 1024670, 1062421, 2049340, 2124842, 4249684, 5312105, 10624210, 20185999, 21248420, 40371998, 80743996, 100929995, 201859990, 403719980]

約数ペア:

[(1, 403719980), (2, 201859990), (4, 100929995), (5, 80743996), (10, 40371998), (19, 21248420), (20, 20185999), (38, 10624210), (76, 5312105), (95, 4249684), (190, 2124842), (197, 2049340), (380, 1062421), (394, 1024670), (788, 512335), (985, 409868), (1970, 204934), (3743, 107860), (3940, 102467), (5393, 74860), (7486, 53930), (10786, 37430), (14972, 26965), (18715, 21572)]