199508740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{3221}}^1$

素因数の和:3412

約数の個数: 48

約数和(自身を含む): 443862720

約数和(自身を除く): 244353980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 163, 190, 326, 380, 652, 815, 1630, 3097, 3221, 3260, 6194, 6442, 12388, 12884, 15485, 16105, 30970, 32210, 61199, 61940, 64420, 122398, 244796, 305995, 525023, 611990, 1050046, 1223980, 2100092, 2625115, 5250230, 9975437, 10500460, 19950874, 39901748, 49877185, 99754370, 199508740]

約数ペア:

[(1, 199508740), (2, 99754370), (4, 49877185), (5, 39901748), (10, 19950874), (19, 10500460), (20, 9975437), (38, 5250230), (76, 2625115), (95, 2100092), (163, 1223980), (190, 1050046), (326, 611990), (380, 525023), (652, 305995), (815, 244796), (1630, 122398), (3097, 64420), (3221, 61940), (3260, 61199), (6194, 32210), (6442, 30970), (12388, 16105), (12884, 15485)]