19821340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:299

約数の個数: 96

約数和(自身を含む): 52996608

約数和(自身を除く): 33175268

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 61, 70, 77, 110, 122, 140, 154, 211, 220, 244, 305, 308, 385, 422, 427, 610, 671, 770, 844, 854, 1055, 1220, 1342, 1477, 1540, 1708, 2110, 2135, 2321, 2684, 2954, 3355, 4220, 4270, 4642, 4697, 5908, 6710, 7385, 8540, 9284, 9394, 11605, 12871, 13420, 14770, 16247, 18788, 23210, 23485, 25742, 29540, 32494, 46420, 46970, 51484, 64355, 64988, 81235, 90097, 93940, 128710, 141581, 162470, 180194, 257420, 283162, 324940, 360388, 450485, 566324, 707905, 900970, 991067, 1415810, 1801940, 1982134, 2831620, 3964268, 4955335, 9910670, 19821340]

約数ペア:

[(1, 19821340), (2, 9910670), (4, 4955335), (5, 3964268), (7, 2831620), (10, 1982134), (11, 1801940), (14, 1415810), (20, 991067), (22, 900970), (28, 707905), (35, 566324), (44, 450485), (55, 360388), (61, 324940), (70, 283162), (77, 257420), (110, 180194), (122, 162470), (140, 141581), (154, 128710), (211, 93940), (220, 90097), (244, 81235), (305, 64988), (308, 64355), (385, 51484), (422, 46970), (427, 46420), (610, 32494), (671, 29540), (770, 25742), (844, 23485), (854, 23210), (1055, 18788), (1220, 16247), (1342, 14770), (1477, 13420), (1540, 12871), (1708, 11605), (2110, 9394), (2135, 9284), (2321, 8540), (2684, 7385), (2954, 6710), (3355, 5908), (4220, 4697), (4270, 4642)]