28642380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36721}}^1$

素因数の和:36746

約数の個数: 48

約数和(自身を含む): 86370144

約数和(自身を除く): 57727764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 36721, 73442, 110163, 146884, 183605, 220326, 367210, 440652, 477373, 550815, 734420, 954746, 1101630, 1432119, 1909492, 2203260, 2386865, 2864238, 4773730, 5728476, 7160595, 9547460, 14321190, 28642380]

約数ペア:

[(1, 28642380), (2, 14321190), (3, 9547460), (4, 7160595), (5, 5728476), (6, 4773730), (10, 2864238), (12, 2386865), (13, 2203260), (15, 1909492), (20, 1432119), (26, 1101630), (30, 954746), (39, 734420), (52, 550815), (60, 477373), (65, 440652), (78, 367210), (130, 220326), (156, 183605), (195, 146884), (260, 110163), (390, 73442), (780, 36721)]