20671380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2801}}^1$

素因数の和:2857

約数の個数: 72

約数和(自身を含む): 64255464

約数和(自身を除く): 43584084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 2801, 3690, 5602, 7380, 8403, 11204, 14005, 16806, 25209, 28010, 33612, 42015, 50418, 56020, 84030, 100836, 114841, 126045, 168060, 229682, 252090, 344523, 459364, 504180, 574205, 689046, 1033569, 1148410, 1378092, 1722615, 2067138, 2296820, 3445230, 4134276, 5167845, 6890460, 10335690, 20671380]

約数ペア:

[(1, 20671380), (2, 10335690), (3, 6890460), (4, 5167845), (5, 4134276), (6, 3445230), (9, 2296820), (10, 2067138), (12, 1722615), (15, 1378092), (18, 1148410), (20, 1033569), (30, 689046), (36, 574205), (41, 504180), (45, 459364), (60, 344523), (82, 252090), (90, 229682), (123, 168060), (164, 126045), (180, 114841), (205, 100836), (246, 84030), (369, 56020), (410, 50418), (492, 42015), (615, 33612), (738, 28010), (820, 25209), (1230, 16806), (1476, 14005), (1845, 11204), (2460, 8403), (2801, 7380), (3690, 5602)]