20931260960

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{47623}}^1$

素因数の和:47746

約数の個数: 96

約数和(自身を含む): 51413346432

約数和(自身を除く): 30482085472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 67, 80, 82, 134, 160, 164, 205, 268, 328, 335, 410, 536, 656, 670, 820, 1072, 1312, 1340, 1640, 2144, 2680, 2747, 3280, 5360, 5494, 6560, 10720, 10988, 13735, 21976, 27470, 43952, 47623, 54940, 87904, 95246, 109880, 190492, 219760, 238115, 380984, 439520, 476230, 761968, 952460, 1523936, 1904920, 1952543, 3190741, 3809840, 3905086, 6381482, 7619680, 7810172, 9762715, 12762964, 15620344, 15953705, 19525430, 25525928, 31240688, 31907410, 39050860, 51051856, 62481376, 63814820, 78101720, 102103712, 127629640, 130820381, 156203440, 255259280, 261640762, 312406880, 510518560, 523281524, 654101905, 1046563048, 1308203810, 2093126096, 2616407620, 4186252192, 5232815240, 10465630480, 20931260960]

約数ペア:

[(1, 20931260960), (2, 10465630480), (4, 5232815240), (5, 4186252192), (8, 2616407620), (10, 2093126096), (16, 1308203810), (20, 1046563048), (32, 654101905), (40, 523281524), (41, 510518560), (67, 312406880), (80, 261640762), (82, 255259280), (134, 156203440), (160, 130820381), (164, 127629640), (205, 102103712), (268, 78101720), (328, 63814820), (335, 62481376), (410, 51051856), (536, 39050860), (656, 31907410), (670, 31240688), (820, 25525928), (1072, 19525430), (1312, 15953705), (1340, 15620344), (1640, 12762964), (2144, 9762715), (2680, 7810172), (2747, 7619680), (3280, 6381482), (5360, 3905086), (5494, 3809840), (6560, 3190741), (10720, 1952543), (10988, 1904920), (13735, 1523936), (21976, 952460), (27470, 761968), (43952, 476230), (47623, 439520), (54940, 380984), (87904, 238115), (95246, 219760), (109880, 190492)]