19991070

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:207

約数の個数: 128

約数和(自身を含む): 59719680

約数和(自身を除く): 39728610

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 53, 54, 55, 66, 90, 99, 106, 110, 127, 135, 159, 165, 198, 254, 265, 270, 297, 318, 330, 381, 477, 495, 530, 583, 594, 635, 762, 795, 954, 990, 1143, 1166, 1270, 1397, 1431, 1485, 1590, 1749, 1905, 2286, 2385, 2794, 2862, 2915, 2970, 3429, 3498, 3810, 4191, 4770, 5247, 5715, 5830, 6731, 6858, 6985, 7155, 8382, 8745, 10494, 11430, 12573, 13462, 13970, 14310, 15741, 17145, 17490, 20193, 20955, 25146, 26235, 31482, 33655, 34290, 37719, 40386, 41910, 52470, 60579, 62865, 67310, 74041, 75438, 78705, 100965, 121158, 125730, 148082, 157410, 181737, 188595, 201930, 222123, 302895, 363474, 370205, 377190, 444246, 605790, 666369, 740410, 908685, 1110615, 1332738, 1817370, 1999107, 2221230, 3331845, 3998214, 6663690, 9995535, 19991070]

約数ペア:

[(1, 19991070), (2, 9995535), (3, 6663690), (5, 3998214), (6, 3331845), (9, 2221230), (10, 1999107), (11, 1817370), (15, 1332738), (18, 1110615), (22, 908685), (27, 740410), (30, 666369), (33, 605790), (45, 444246), (53, 377190), (54, 370205), (55, 363474), (66, 302895), (90, 222123), (99, 201930), (106, 188595), (110, 181737), (127, 157410), (135, 148082), (159, 125730), (165, 121158), (198, 100965), (254, 78705), (265, 75438), (270, 74041), (297, 67310), (318, 62865), (330, 60579), (381, 52470), (477, 41910), (495, 40386), (530, 37719), (583, 34290), (594, 33655), (635, 31482), (762, 26235), (795, 25146), (954, 20955), (990, 20193), (1143, 17490), (1166, 17145), (1270, 15741), (1397, 14310), (1431, 13970), (1485, 13462), (1590, 12573), (1749, 11430), (1905, 10494), (2286, 8745), (2385, 8382), (2794, 7155), (2862, 6985), (2915, 6858), (2970, 6731), (3429, 5830), (3498, 5715), (3810, 5247), (4191, 4770)]