28423720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1163}}^1$

素因数の和:1234

約数の個数: 64

約数和(自身を含む): 70398720

約数和(自身を除く): 41975000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 94, 104, 130, 188, 235, 260, 376, 470, 520, 611, 940, 1163, 1222, 1880, 2326, 2444, 3055, 4652, 4888, 5815, 6110, 9304, 11630, 12220, 15119, 23260, 24440, 30238, 46520, 54661, 60476, 75595, 109322, 120952, 151190, 218644, 273305, 302380, 437288, 546610, 604760, 710593, 1093220, 1421186, 2186440, 2842372, 3552965, 5684744, 7105930, 14211860, 28423720]

約数ペア:

[(1, 28423720), (2, 14211860), (4, 7105930), (5, 5684744), (8, 3552965), (10, 2842372), (13, 2186440), (20, 1421186), (26, 1093220), (40, 710593), (47, 604760), (52, 546610), (65, 437288), (94, 302380), (104, 273305), (130, 218644), (188, 151190), (235, 120952), (260, 109322), (376, 75595), (470, 60476), (520, 54661), (611, 46520), (940, 30238), (1163, 24440), (1222, 23260), (1880, 15119), (2326, 12220), (2444, 11630), (3055, 9304), (4652, 6110), (4888, 5815)]