19308380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^2$

素因数の和:235

約数の個数: 72

約数和(自身を含む): 50393952

約数和(自身を除く): 31085572

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 103, 130, 140, 182, 206, 260, 364, 412, 455, 515, 721, 910, 1030, 1339, 1442, 1820, 2060, 2678, 2884, 3605, 5356, 6695, 7210, 9373, 10609, 13390, 14420, 18746, 21218, 26780, 37492, 42436, 46865, 53045, 74263, 93730, 106090, 137917, 148526, 187460, 212180, 275834, 297052, 371315, 551668, 689585, 742630, 965419, 1379170, 1485260, 1930838, 2758340, 3861676, 4827095, 9654190, 19308380]

約数ペア:

[(1, 19308380), (2, 9654190), (4, 4827095), (5, 3861676), (7, 2758340), (10, 1930838), (13, 1485260), (14, 1379170), (20, 965419), (26, 742630), (28, 689585), (35, 551668), (52, 371315), (65, 297052), (70, 275834), (91, 212180), (103, 187460), (130, 148526), (140, 137917), (182, 106090), (206, 93730), (260, 74263), (364, 53045), (412, 46865), (455, 42436), (515, 37492), (721, 26780), (910, 21218), (1030, 18746), (1339, 14420), (1442, 13390), (1820, 10609), (2060, 9373), (2678, 7210), (2884, 6695), (3605, 5356)]