71687340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{887}}^1$

素因数の和:1351

約数の個数: 72

約数和(自身を含む): 218181600

約数和(自身を除く): 146494260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449, 887, 898, 1347, 1774, 1796, 2245, 2661, 2694, 3548, 4041, 4435, 4490, 5322, 5388, 6735, 7983, 8082, 8870, 8980, 10644, 13305, 13470, 15966, 16164, 17740, 20205, 26610, 26940, 31932, 39915, 40410, 53220, 79830, 80820, 159660, 398263, 796526, 1194789, 1593052, 1991315, 2389578, 3584367, 3982630, 4779156, 5973945, 7168734, 7965260, 11947890, 14337468, 17921835, 23895780, 35843670, 71687340]

約数ペア:

[(1, 71687340), (2, 35843670), (3, 23895780), (4, 17921835), (5, 14337468), (6, 11947890), (9, 7965260), (10, 7168734), (12, 5973945), (15, 4779156), (18, 3982630), (20, 3584367), (30, 2389578), (36, 1991315), (45, 1593052), (60, 1194789), (90, 796526), (180, 398263), (449, 159660), (887, 80820), (898, 79830), (1347, 53220), (1774, 40410), (1796, 39915), (2245, 31932), (2661, 26940), (2694, 26610), (3548, 20205), (4041, 17740), (4435, 16164), (4490, 15966), (5322, 13470), (5388, 13305), (6735, 10644), (7983, 8980), (8082, 8870)]