256927788

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{20333}}^1$

素因数の和:20365

約数の個数: 72

約数和(自身を含む): 725354448

約数和(自身を除く): 468426660

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 2106, 3159, 4212, 6318, 12636, 20333, 40666, 60999, 81332, 121998, 182997, 243996, 264329, 365994, 528658, 548991, 731988, 792987, 1057316, 1097982, 1585974, 1646973, 2195964, 2378961, 3171948, 3293946, 4757922, 4940919, 6587892, 7136883, 9515844, 9881838, 14273766, 19763676, 21410649, 28547532, 42821298, 64231947, 85642596, 128463894, 256927788]

約数ペア:

[(1, 256927788), (2, 128463894), (3, 85642596), (4, 64231947), (6, 42821298), (9, 28547532), (12, 21410649), (13, 19763676), (18, 14273766), (26, 9881838), (27, 9515844), (36, 7136883), (39, 6587892), (52, 4940919), (54, 4757922), (78, 3293946), (81, 3171948), (108, 2378961), (117, 2195964), (156, 1646973), (162, 1585974), (234, 1097982), (243, 1057316), (324, 792987), (351, 731988), (468, 548991), (486, 528658), (702, 365994), (972, 264329), (1053, 243996), (1404, 182997), (2106, 121998), (3159, 81332), (4212, 60999), (6318, 40666), (12636, 20333)]