38787640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{353}}^1$

素因数の和:472

約数の個数: 64

約数和(自身を含む): 90992160

約数和(自身を除く): 52204520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 67, 82, 134, 164, 205, 268, 328, 335, 353, 410, 536, 670, 706, 820, 1340, 1412, 1640, 1765, 2680, 2747, 2824, 3530, 5494, 7060, 10988, 13735, 14120, 14473, 21976, 23651, 27470, 28946, 47302, 54940, 57892, 72365, 94604, 109880, 115784, 118255, 144730, 189208, 236510, 289460, 473020, 578920, 946040, 969691, 1939382, 3878764, 4848455, 7757528, 9696910, 19393820, 38787640]

約数ペア:

[(1, 38787640), (2, 19393820), (4, 9696910), (5, 7757528), (8, 4848455), (10, 3878764), (20, 1939382), (40, 969691), (41, 946040), (67, 578920), (82, 473020), (134, 289460), (164, 236510), (205, 189208), (268, 144730), (328, 118255), (335, 115784), (353, 109880), (410, 94604), (536, 72365), (670, 57892), (706, 54940), (820, 47302), (1340, 28946), (1412, 27470), (1640, 23651), (1765, 21976), (2680, 14473), (2747, 14120), (2824, 13735), (3530, 10988), (5494, 7060)]