19711620

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{211}}^1$

素因数の和:402

約数の個数: 96

約数和(自身を含む): 61971840

約数和(自身を除く): 42260220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 173, 180, 211, 270, 346, 422, 519, 540, 633, 692, 844, 865, 1038, 1055, 1266, 1557, 1730, 1899, 2076, 2110, 2532, 2595, 3114, 3165, 3460, 3798, 4220, 4671, 5190, 5697, 6228, 6330, 7596, 7785, 9342, 9495, 10380, 11394, 12660, 15570, 18684, 18990, 22788, 23355, 28485, 31140, 36503, 37980, 46710, 56970, 73006, 93420, 109509, 113940, 146012, 182515, 219018, 328527, 365030, 438036, 547545, 657054, 730060, 985581, 1095090, 1314108, 1642635, 1971162, 2190180, 3285270, 3942324, 4927905, 6570540, 9855810, 19711620]

約数ペア:

[(1, 19711620), (2, 9855810), (3, 6570540), (4, 4927905), (5, 3942324), (6, 3285270), (9, 2190180), (10, 1971162), (12, 1642635), (15, 1314108), (18, 1095090), (20, 985581), (27, 730060), (30, 657054), (36, 547545), (45, 438036), (54, 365030), (60, 328527), (90, 219018), (108, 182515), (135, 146012), (173, 113940), (180, 109509), (211, 93420), (270, 73006), (346, 56970), (422, 46710), (519, 37980), (540, 36503), (633, 31140), (692, 28485), (844, 23355), (865, 22788), (1038, 18990), (1055, 18684), (1266, 15570), (1557, 12660), (1730, 11394), (1899, 10380), (2076, 9495), (2110, 9342), (2532, 7785), (2595, 7596), (3114, 6330), (3165, 6228), (3460, 5697), (3798, 5190), (4220, 4671)]