17967891880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{180473}}^1$

素因数の和:180634

約数の個数: 64

約数和(自身を含む): 42880622400

約数和(自身を除く): 24912730520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 131, 152, 190, 262, 380, 524, 655, 760, 1048, 1310, 2489, 2620, 4978, 5240, 9956, 12445, 19912, 24890, 49780, 99560, 180473, 360946, 721892, 902365, 1443784, 1804730, 3428987, 3609460, 6857974, 7218920, 13715948, 17144935, 23641963, 27431896, 34289870, 47283926, 68579740, 94567852, 118209815, 137159480, 189135704, 236419630, 449197297, 472839260, 898394594, 945678520, 1796789188, 2245986485, 3593578376, 4491972970, 8983945940, 17967891880]

約数ペア:

[(1, 17967891880), (2, 8983945940), (4, 4491972970), (5, 3593578376), (8, 2245986485), (10, 1796789188), (19, 945678520), (20, 898394594), (38, 472839260), (40, 449197297), (76, 236419630), (95, 189135704), (131, 137159480), (152, 118209815), (190, 94567852), (262, 68579740), (380, 47283926), (524, 34289870), (655, 27431896), (760, 23641963), (1048, 17144935), (1310, 13715948), (2489, 7218920), (2620, 6857974), (4978, 3609460), (5240, 3428987), (9956, 1804730), (12445, 1443784), (19912, 902365), (24890, 721892), (49780, 360946), (99560, 180473)]