66938920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1459}}^1$

素因数の和:1538

約数の個数: 64

約数和(自身を含む): 159782400

約数和(自身を除く): 92843480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 620, 740, 1147, 1240, 1459, 1480, 2294, 2918, 4588, 5735, 5836, 7295, 9176, 11470, 11672, 14590, 22940, 29180, 45229, 45880, 53983, 58360, 90458, 107966, 180916, 215932, 226145, 269915, 361832, 431864, 452290, 539830, 904580, 1079660, 1673473, 1809160, 2159320, 3346946, 6693892, 8367365, 13387784, 16734730, 33469460, 66938920]

約数ペア:

[(1, 66938920), (2, 33469460), (4, 16734730), (5, 13387784), (8, 8367365), (10, 6693892), (20, 3346946), (31, 2159320), (37, 1809160), (40, 1673473), (62, 1079660), (74, 904580), (124, 539830), (148, 452290), (155, 431864), (185, 361832), (248, 269915), (296, 226145), (310, 215932), (370, 180916), (620, 107966), (740, 90458), (1147, 58360), (1240, 53983), (1459, 45880), (1480, 45229), (2294, 29180), (2918, 22940), (4588, 14590), (5735, 11672), (5836, 11470), (7295, 9176)]