640736928

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3229}}^1$

素因数の和:3311

約数の個数: 144

約数和(自身を含む): 1999899720

約数和(自身を除く): 1359162792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 53, 72, 78, 96, 104, 106, 117, 144, 156, 159, 208, 212, 234, 288, 312, 318, 416, 424, 468, 477, 624, 636, 689, 848, 936, 954, 1248, 1272, 1378, 1696, 1872, 1908, 2067, 2544, 2756, 3229, 3744, 3816, 4134, 5088, 5512, 6201, 6458, 7632, 8268, 9687, 11024, 12402, 12916, 15264, 16536, 19374, 22048, 24804, 25832, 29061, 33072, 38748, 41977, 49608, 51664, 58122, 66144, 77496, 83954, 99216, 103328, 116244, 125931, 154992, 167908, 171137, 198432, 232488, 251862, 309984, 335816, 342274, 377793, 464976, 503724, 513411, 671632, 684548, 755586, 929952, 1007448, 1026822, 1343264, 1369096, 1511172, 1540233, 2014896, 2053644, 2224781, 2738192, 3022344, 3080466, 4029792, 4107288, 4449562, 5476384, 6044688, 6160932, 6674343, 8214576, 8899124, 12089376, 12321864, 13348686, 16429152, 17798248, 20023029, 24643728, 26697372, 35596496, 40046058, 49287456, 53394744, 71192992, 80092116, 106789488, 160184232, 213578976, 320368464, 640736928]

約数ペア:

[(1, 640736928), (2, 320368464), (3, 213578976), (4, 160184232), (6, 106789488), (8, 80092116), (9, 71192992), (12, 53394744), (13, 49287456), (16, 40046058), (18, 35596496), (24, 26697372), (26, 24643728), (32, 20023029), (36, 17798248), (39, 16429152), (48, 13348686), (52, 12321864), (53, 12089376), (72, 8899124), (78, 8214576), (96, 6674343), (104, 6160932), (106, 6044688), (117, 5476384), (144, 4449562), (156, 4107288), (159, 4029792), (208, 3080466), (212, 3022344), (234, 2738192), (288, 2224781), (312, 2053644), (318, 2014896), (416, 1540233), (424, 1511172), (468, 1369096), (477, 1343264), (624, 1026822), (636, 1007448), (689, 929952), (848, 755586), (936, 684548), (954, 671632), (1248, 513411), (1272, 503724), (1378, 464976), (1696, 377793), (1872, 342274), (1908, 335816), (2067, 309984), (2544, 251862), (2756, 232488), (3229, 198432), (3744, 171137), (3816, 167908), (4134, 154992), (5088, 125931), (5512, 116244), (6201, 103328), (6458, 99216), (7632, 83954), (8268, 77496), (9687, 66144), (11024, 58122), (12402, 51664), (12916, 49608), (15264, 41977), (16536, 38748), (19374, 33072), (22048, 29061), (24804, 25832)]