256990860

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{67987}}^1$

素因数の和:68012

約数の個数: 96

約数和(自身を含む): 913758720

約数和(自身を除く): 656767860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 67987, 135974, 203961, 271948, 339935, 407922, 475909, 611883, 679870, 815844, 951818, 1019805, 1223766, 1359740, 1427727, 1835649, 1903636, 2039610, 2379545, 2447532, 2855454, 3059415, 3671298, 4079220, 4283181, 4759090, 5710908, 6118830, 7138635, 7342596, 8566362, 9178245, 9518180, 12237660, 12849543, 14277270, 17132724, 18356490, 21415905, 25699086, 28554540, 36712980, 42831810, 51398172, 64247715, 85663620, 128495430, 256990860]

約数ペア:

[(1, 256990860), (2, 128495430), (3, 85663620), (4, 64247715), (5, 51398172), (6, 42831810), (7, 36712980), (9, 28554540), (10, 25699086), (12, 21415905), (14, 18356490), (15, 17132724), (18, 14277270), (20, 12849543), (21, 12237660), (27, 9518180), (28, 9178245), (30, 8566362), (35, 7342596), (36, 7138635), (42, 6118830), (45, 5710908), (54, 4759090), (60, 4283181), (63, 4079220), (70, 3671298), (84, 3059415), (90, 2855454), (105, 2447532), (108, 2379545), (126, 2039610), (135, 1903636), (140, 1835649), (180, 1427727), (189, 1359740), (210, 1223766), (252, 1019805), (270, 951818), (315, 815844), (378, 679870), (420, 611883), (540, 475909), (630, 407922), (756, 339935), (945, 271948), (1260, 203961), (1890, 135974), (3780, 67987)]