81095560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{22279}}^1$

素因数の和:22310

約数の個数: 64

約数和(自身を含む): 224582400

約数和(自身を除く): 143486840

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 22279, 44558, 89116, 111395, 155953, 178232, 222790, 289627, 311906, 445580, 579254, 623812, 779765, 891160, 1158508, 1247624, 1448135, 1559530, 2027389, 2317016, 2896270, 3119060, 4054778, 5792540, 6238120, 8109556, 10136945, 11585080, 16219112, 20273890, 40547780, 81095560]

約数ペア:

[(1, 81095560), (2, 40547780), (4, 20273890), (5, 16219112), (7, 11585080), (8, 10136945), (10, 8109556), (13, 6238120), (14, 5792540), (20, 4054778), (26, 3119060), (28, 2896270), (35, 2317016), (40, 2027389), (52, 1559530), (56, 1448135), (65, 1247624), (70, 1158508), (91, 891160), (104, 779765), (130, 623812), (140, 579254), (182, 445580), (260, 311906), (280, 289627), (364, 222790), (455, 178232), (520, 155953), (728, 111395), (910, 89116), (1820, 44558), (3640, 22279)]