84215720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1\times {\mathrm{191}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 194365440

約数和(自身を除く): 110149720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 151, 191, 292, 302, 365, 382, 584, 604, 730, 755, 764, 955, 1208, 1460, 1510, 1528, 1910, 2920, 3020, 3820, 6040, 7640, 11023, 13943, 22046, 27886, 28841, 44092, 55115, 55772, 57682, 69715, 88184, 110230, 111544, 115364, 139430, 144205, 220460, 230728, 278860, 288410, 440920, 557720, 576820, 1153640, 2105393, 4210786, 8421572, 10526965, 16843144, 21053930, 42107860, 84215720]

約数ペア:

[(1, 84215720), (2, 42107860), (4, 21053930), (5, 16843144), (8, 10526965), (10, 8421572), (20, 4210786), (40, 2105393), (73, 1153640), (146, 576820), (151, 557720), (191, 440920), (292, 288410), (302, 278860), (365, 230728), (382, 220460), (584, 144205), (604, 139430), (730, 115364), (755, 111544), (764, 110230), (955, 88184), (1208, 69715), (1460, 57682), (1510, 55772), (1528, 55115), (1910, 44092), (2920, 28841), (3020, 27886), (3820, 22046), (6040, 13943), (7640, 11023)]