81409900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5693}}^1$

素因数の和:5731

約数の個数: 72

約数和(自身を含む): 207580464

約数和(自身を除く): 126170564

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 130, 143, 220, 260, 275, 286, 325, 550, 572, 650, 715, 1100, 1300, 1430, 2860, 3575, 5693, 7150, 11386, 14300, 22772, 28465, 56930, 62623, 74009, 113860, 125246, 142325, 148018, 250492, 284650, 296036, 313115, 370045, 569300, 626230, 740090, 814099, 1252460, 1480180, 1565575, 1628198, 1850225, 3131150, 3256396, 3700450, 4070495, 6262300, 7400900, 8140990, 16281980, 20352475, 40704950, 81409900]

約数ペア:

[(1, 81409900), (2, 40704950), (4, 20352475), (5, 16281980), (10, 8140990), (11, 7400900), (13, 6262300), (20, 4070495), (22, 3700450), (25, 3256396), (26, 3131150), (44, 1850225), (50, 1628198), (52, 1565575), (55, 1480180), (65, 1252460), (100, 814099), (110, 740090), (130, 626230), (143, 569300), (220, 370045), (260, 313115), (275, 296036), (286, 284650), (325, 250492), (550, 148018), (572, 142325), (650, 125246), (715, 113860), (1100, 74009), (1300, 62623), (1430, 56930), (2860, 28465), (3575, 22772), (5693, 14300), (7150, 11386)]