990478734

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{449}}^1\times {\mathrm{991}}^1$

素因数の和:1505

約数の個数: 64

約数和(自身を含む): 2314137600

約数和(自身を除く): 1323658866

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 106, 159, 318, 371, 449, 742, 898, 991, 1113, 1347, 1982, 2226, 2694, 2973, 3143, 5946, 6286, 6937, 9429, 13874, 18858, 20811, 23797, 41622, 47594, 52523, 71391, 105046, 142782, 157569, 166579, 315138, 333158, 367661, 444959, 499737, 735322, 889918, 999474, 1102983, 1334877, 2205966, 2669754, 3114713, 6229426, 9344139, 18688278, 23582827, 47165654, 70748481, 141496962, 165079789, 330159578, 495239367, 990478734]

約数ペア:

[(1, 990478734), (2, 495239367), (3, 330159578), (6, 165079789), (7, 141496962), (14, 70748481), (21, 47165654), (42, 23582827), (53, 18688278), (106, 9344139), (159, 6229426), (318, 3114713), (371, 2669754), (449, 2205966), (742, 1334877), (898, 1102983), (991, 999474), (1113, 889918), (1347, 735322), (1982, 499737), (2226, 444959), (2694, 367661), (2973, 333158), (3143, 315138), (5946, 166579), (6286, 157569), (6937, 142782), (9429, 105046), (13874, 71391), (18858, 52523), (20811, 47594), (23797, 41622)]