15984220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 41287680

約数和(自身を除く): 25303460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 31, 35, 58, 62, 70, 116, 124, 127, 140, 145, 155, 203, 217, 254, 290, 310, 406, 434, 508, 580, 620, 635, 812, 868, 889, 899, 1015, 1085, 1270, 1778, 1798, 2030, 2170, 2540, 3556, 3596, 3683, 3937, 4060, 4340, 4445, 4495, 6293, 7366, 7874, 8890, 8990, 12586, 14732, 15748, 17780, 17980, 18415, 19685, 25172, 25781, 27559, 31465, 36830, 39370, 51562, 55118, 62930, 73660, 78740, 103124, 110236, 114173, 125860, 128905, 137795, 228346, 257810, 275590, 456692, 515620, 551180, 570865, 799211, 1141730, 1598422, 2283460, 3196844, 3996055, 7992110, 15984220]

約数ペア:

[(1, 15984220), (2, 7992110), (4, 3996055), (5, 3196844), (7, 2283460), (10, 1598422), (14, 1141730), (20, 799211), (28, 570865), (29, 551180), (31, 515620), (35, 456692), (58, 275590), (62, 257810), (70, 228346), (116, 137795), (124, 128905), (127, 125860), (140, 114173), (145, 110236), (155, 103124), (203, 78740), (217, 73660), (254, 62930), (290, 55118), (310, 51562), (406, 39370), (434, 36830), (508, 31465), (580, 27559), (620, 25781), (635, 25172), (812, 19685), (868, 18415), (889, 17980), (899, 17780), (1015, 15748), (1085, 14732), (1270, 12586), (1778, 8990), (1798, 8890), (2030, 7874), (2170, 7366), (2540, 6293), (3556, 4495), (3596, 4445), (3683, 4340), (3937, 4060)]