245785360

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 120

約数和(自身を含む): 620585280

約数和(自身を除く): 374799920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 40, 46, 62, 80, 92, 115, 124, 139, 155, 184, 230, 248, 278, 310, 368, 460, 496, 556, 620, 695, 713, 920, 961, 1112, 1240, 1390, 1426, 1840, 1922, 2224, 2480, 2780, 2852, 3197, 3565, 3844, 4309, 4805, 5560, 5704, 6394, 7130, 7688, 8618, 9610, 11120, 11408, 12788, 14260, 15376, 15985, 17236, 19220, 21545, 22103, 25576, 28520, 31970, 34472, 38440, 43090, 44206, 51152, 57040, 63940, 68944, 76880, 86180, 88412, 99107, 110515, 127880, 133579, 172360, 176824, 198214, 221030, 255760, 267158, 344720, 353648, 396428, 442060, 495535, 534316, 667895, 792856, 884120, 991070, 1068632, 1335790, 1585712, 1768240, 1982140, 2137264, 2671580, 3072317, 3964280, 5343160, 6144634, 7928560, 10686320, 12289268, 15361585, 24578536, 30723170, 49157072, 61446340, 122892680, 245785360]

約数ペア:

[(1, 245785360), (2, 122892680), (4, 61446340), (5, 49157072), (8, 30723170), (10, 24578536), (16, 15361585), (20, 12289268), (23, 10686320), (31, 7928560), (40, 6144634), (46, 5343160), (62, 3964280), (80, 3072317), (92, 2671580), (115, 2137264), (124, 1982140), (139, 1768240), (155, 1585712), (184, 1335790), (230, 1068632), (248, 991070), (278, 884120), (310, 792856), (368, 667895), (460, 534316), (496, 495535), (556, 442060), (620, 396428), (695, 353648), (713, 344720), (920, 267158), (961, 255760), (1112, 221030), (1240, 198214), (1390, 176824), (1426, 172360), (1840, 133579), (1922, 127880), (2224, 110515), (2480, 99107), (2780, 88412), (2852, 86180), (3197, 76880), (3565, 68944), (3844, 63940), (4309, 57040), (4805, 51152), (5560, 44206), (5704, 43090), (6394, 38440), (7130, 34472), (7688, 31970), (8618, 28520), (9610, 25576), (11120, 22103), (11408, 21545), (12788, 19220), (14260, 17236), (15376, 15985)]