12857580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1171}}^1$

素因数の和:1247

約数の個数: 72

約数和(自身を含む): 39674544

約数和(自身を除く): 26816964

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1171, 1220, 1830, 2196, 2342, 2745, 3513, 3660, 4684, 5490, 5855, 7026, 10539, 10980, 11710, 14052, 17565, 21078, 23420, 35130, 42156, 52695, 70260, 71431, 105390, 142862, 210780, 214293, 285724, 357155, 428586, 642879, 714310, 857172, 1071465, 1285758, 1428620, 2142930, 2571516, 3214395, 4285860, 6428790, 12857580]

約数ペア:

[(1, 12857580), (2, 6428790), (3, 4285860), (4, 3214395), (5, 2571516), (6, 2142930), (9, 1428620), (10, 1285758), (12, 1071465), (15, 857172), (18, 714310), (20, 642879), (30, 428586), (36, 357155), (45, 285724), (60, 214293), (61, 210780), (90, 142862), (122, 105390), (180, 71431), (183, 70260), (244, 52695), (305, 42156), (366, 35130), (549, 23420), (610, 21078), (732, 17565), (915, 14052), (1098, 11710), (1171, 10980), (1220, 10539), (1830, 7026), (2196, 5855), (2342, 5490), (2745, 4684), (3513, 3660)]