2021108280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{3709}}^1$

素因数の和:3981

約数の個数: 128

約数和(自身を含む): 6410880000

約数和(自身を除く): 4389771720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 239, 285, 380, 456, 478, 570, 717, 760, 956, 1140, 1195, 1434, 1912, 2280, 2390, 2868, 3585, 3709, 4541, 4780, 5736, 7170, 7418, 9082, 9560, 11127, 13623, 14340, 14836, 18164, 18545, 22254, 22705, 27246, 28680, 29672, 36328, 37090, 44508, 45410, 54492, 55635, 68115, 70471, 74180, 89016, 90820, 108984, 111270, 136230, 140942, 148360, 181640, 211413, 222540, 272460, 281884, 352355, 422826, 445080, 544920, 563768, 704710, 845652, 886451, 1057065, 1409420, 1691304, 1772902, 2114130, 2659353, 2818840, 3545804, 4228260, 4432255, 5318706, 7091608, 8456520, 8864510, 10637412, 13296765, 16842569, 17729020, 21274824, 26593530, 33685138, 35458040, 50527707, 53187060, 67370276, 84212845, 101055414, 106374120, 134740552, 168425690, 202110828, 252638535, 336851380, 404221656, 505277070, 673702760, 1010554140, 2021108280]

約数ペア:

[(1, 2021108280), (2, 1010554140), (3, 673702760), (4, 505277070), (5, 404221656), (6, 336851380), (8, 252638535), (10, 202110828), (12, 168425690), (15, 134740552), (19, 106374120), (20, 101055414), (24, 84212845), (30, 67370276), (38, 53187060), (40, 50527707), (57, 35458040), (60, 33685138), (76, 26593530), (95, 21274824), (114, 17729020), (120, 16842569), (152, 13296765), (190, 10637412), (228, 8864510), (239, 8456520), (285, 7091608), (380, 5318706), (456, 4432255), (478, 4228260), (570, 3545804), (717, 2818840), (760, 2659353), (956, 2114130), (1140, 1772902), (1195, 1691304), (1434, 1409420), (1912, 1057065), (2280, 886451), (2390, 845652), (2868, 704710), (3585, 563768), (3709, 544920), (4541, 445080), (4780, 422826), (5736, 352355), (7170, 281884), (7418, 272460), (9082, 222540), (9560, 211413), (11127, 181640), (13623, 148360), (14340, 140942), (14836, 136230), (18164, 111270), (18545, 108984), (22254, 90820), (22705, 89016), (27246, 74180), (28680, 70471), (29672, 68115), (36328, 55635), (37090, 54492), (44508, 45410)]