20802810

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:172

約数の個数: 128

約数和(自身を含む): 61378560

約数和(自身を除く): 40575750

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 59, 69, 70, 73, 105, 115, 118, 138, 146, 161, 177, 210, 219, 230, 295, 322, 345, 354, 365, 413, 438, 483, 511, 590, 690, 730, 805, 826, 885, 966, 1022, 1095, 1239, 1357, 1533, 1610, 1679, 1770, 2065, 2190, 2415, 2478, 2555, 2714, 3066, 3358, 4071, 4130, 4307, 4830, 5037, 5110, 6195, 6785, 7665, 8142, 8395, 8614, 9499, 10074, 11753, 12390, 12921, 13570, 15330, 16790, 18998, 20355, 21535, 23506, 25185, 25842, 28497, 30149, 35259, 40710, 43070, 47495, 50370, 56994, 58765, 60298, 64605, 70518, 90447, 94990, 99061, 117530, 129210, 142485, 150745, 176295, 180894, 198122, 284970, 297183, 301490, 352590, 452235, 495305, 594366, 693427, 904470, 990610, 1386854, 1485915, 2080281, 2971830, 3467135, 4160562, 6934270, 10401405, 20802810]

約数ペア:

[(1, 20802810), (2, 10401405), (3, 6934270), (5, 4160562), (6, 3467135), (7, 2971830), (10, 2080281), (14, 1485915), (15, 1386854), (21, 990610), (23, 904470), (30, 693427), (35, 594366), (42, 495305), (46, 452235), (59, 352590), (69, 301490), (70, 297183), (73, 284970), (105, 198122), (115, 180894), (118, 176295), (138, 150745), (146, 142485), (161, 129210), (177, 117530), (210, 99061), (219, 94990), (230, 90447), (295, 70518), (322, 64605), (345, 60298), (354, 58765), (365, 56994), (413, 50370), (438, 47495), (483, 43070), (511, 40710), (590, 35259), (690, 30149), (730, 28497), (805, 25842), (826, 25185), (885, 23506), (966, 21535), (1022, 20355), (1095, 18998), (1239, 16790), (1357, 15330), (1533, 13570), (1610, 12921), (1679, 12390), (1770, 11753), (2065, 10074), (2190, 9499), (2415, 8614), (2478, 8395), (2555, 8142), (2714, 7665), (3066, 6785), (3358, 6195), (4071, 5110), (4130, 5037), (4307, 4830)]