20975500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1$

素因数の和:500

約数の個数: 96

約数和(自身を含む): 56504448

約数和(自身を除く): 35528948

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 125, 130, 140, 175, 182, 250, 260, 325, 350, 364, 455, 461, 500, 650, 700, 875, 910, 922, 1300, 1625, 1750, 1820, 1844, 2275, 2305, 3227, 3250, 3500, 4550, 4610, 5993, 6454, 6500, 9100, 9220, 11375, 11525, 11986, 12908, 16135, 22750, 23050, 23972, 29965, 32270, 41951, 45500, 46100, 57625, 59930, 64540, 80675, 83902, 115250, 119860, 149825, 161350, 167804, 209755, 230500, 299650, 322700, 403375, 419510, 599300, 749125, 806750, 839020, 1048775, 1498250, 1613500, 2097550, 2996500, 4195100, 5243875, 10487750, 20975500]

約数ペア:

[(1, 20975500), (2, 10487750), (4, 5243875), (5, 4195100), (7, 2996500), (10, 2097550), (13, 1613500), (14, 1498250), (20, 1048775), (25, 839020), (26, 806750), (28, 749125), (35, 599300), (50, 419510), (52, 403375), (65, 322700), (70, 299650), (91, 230500), (100, 209755), (125, 167804), (130, 161350), (140, 149825), (175, 119860), (182, 115250), (250, 83902), (260, 80675), (325, 64540), (350, 59930), (364, 57625), (455, 46100), (461, 45500), (500, 41951), (650, 32270), (700, 29965), (875, 23972), (910, 23050), (922, 22750), (1300, 16135), (1625, 12908), (1750, 11986), (1820, 11525), (1844, 11375), (2275, 9220), (2305, 9100), (3227, 6500), (3250, 6454), (3500, 5993), (4550, 4610)]