39784780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 100638720

約数和(自身を除く): 60853940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 89, 103, 124, 140, 155, 178, 206, 217, 310, 356, 412, 434, 445, 515, 620, 623, 721, 868, 890, 1030, 1085, 1246, 1442, 1780, 2060, 2170, 2492, 2759, 2884, 3115, 3193, 3605, 4340, 5518, 6230, 6386, 7210, 9167, 11036, 12460, 12772, 13795, 14420, 15965, 18334, 19313, 22351, 27590, 31930, 36668, 38626, 44702, 45835, 55180, 63860, 64169, 77252, 89404, 91670, 96565, 111755, 128338, 183340, 193130, 223510, 256676, 284177, 320845, 386260, 447020, 568354, 641690, 1136708, 1283380, 1420885, 1989239, 2841770, 3978478, 5683540, 7956956, 9946195, 19892390, 39784780]

約数ペア:

[(1, 39784780), (2, 19892390), (4, 9946195), (5, 7956956), (7, 5683540), (10, 3978478), (14, 2841770), (20, 1989239), (28, 1420885), (31, 1283380), (35, 1136708), (62, 641690), (70, 568354), (89, 447020), (103, 386260), (124, 320845), (140, 284177), (155, 256676), (178, 223510), (206, 193130), (217, 183340), (310, 128338), (356, 111755), (412, 96565), (434, 91670), (445, 89404), (515, 77252), (620, 64169), (623, 63860), (721, 55180), (868, 45835), (890, 44702), (1030, 38626), (1085, 36668), (1246, 31930), (1442, 27590), (1780, 22351), (2060, 19313), (2170, 18334), (2492, 15965), (2759, 14420), (2884, 13795), (3115, 12772), (3193, 12460), (3605, 11036), (4340, 9167), (5518, 7210), (6230, 6386)]