249342380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 640021536

約数和(自身を除く): 390679156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 61, 70, 86, 97, 98, 122, 140, 172, 194, 196, 215, 244, 245, 301, 305, 388, 427, 430, 485, 490, 602, 610, 679, 854, 860, 970, 980, 1204, 1220, 1358, 1505, 1708, 1940, 2107, 2135, 2623, 2716, 2989, 3010, 3395, 4171, 4214, 4270, 4753, 5246, 5917, 5978, 6020, 6790, 8342, 8428, 8540, 9506, 10492, 10535, 11834, 11956, 13115, 13580, 14945, 16684, 18361, 19012, 20855, 21070, 23668, 23765, 26230, 29197, 29585, 29890, 36722, 41419, 41710, 42140, 47530, 52460, 58394, 59170, 59780, 73444, 82838, 83420, 91805, 95060, 116788, 118340, 128527, 145985, 165676, 183610, 204379, 207095, 254431, 257054, 289933, 291970, 367220, 408758, 414190, 508862, 514108, 579866, 583940, 642635, 817516, 828380, 1017724, 1021895, 1159732, 1272155, 1285270, 1449665, 1781017, 2043790, 2544310, 2570540, 2899330, 3562034, 4087580, 5088620, 5798660, 7124068, 8905085, 12467119, 17810170, 24934238, 35620340, 49868476, 62335595, 124671190, 249342380]

約数ペア:

[(1, 249342380), (2, 124671190), (4, 62335595), (5, 49868476), (7, 35620340), (10, 24934238), (14, 17810170), (20, 12467119), (28, 8905085), (35, 7124068), (43, 5798660), (49, 5088620), (61, 4087580), (70, 3562034), (86, 2899330), (97, 2570540), (98, 2544310), (122, 2043790), (140, 1781017), (172, 1449665), (194, 1285270), (196, 1272155), (215, 1159732), (244, 1021895), (245, 1017724), (301, 828380), (305, 817516), (388, 642635), (427, 583940), (430, 579866), (485, 514108), (490, 508862), (602, 414190), (610, 408758), (679, 367220), (854, 291970), (860, 289933), (970, 257054), (980, 254431), (1204, 207095), (1220, 204379), (1358, 183610), (1505, 165676), (1708, 145985), (1940, 128527), (2107, 118340), (2135, 116788), (2623, 95060), (2716, 91805), (2989, 83420), (3010, 82838), (3395, 73444), (4171, 59780), (4214, 59170), (4270, 58394), (4753, 52460), (5246, 47530), (5917, 42140), (5978, 41710), (6020, 41419), (6790, 36722), (8342, 29890), (8428, 29585), (8540, 29197), (9506, 26230), (10492, 23765), (10535, 23668), (11834, 21070), (11956, 20855), (13115, 19012), (13580, 18361), (14945, 16684)]