640138368

素因数分解:

$2^7\times 3^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:402

約数の個数: 128

約数和(自身を含む): 1747872000

約数和(自身を除く): 1107733632

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 67, 96, 128, 134, 139, 179, 192, 201, 268, 278, 358, 384, 402, 417, 536, 537, 556, 716, 804, 834, 1072, 1074, 1112, 1432, 1608, 1668, 2144, 2148, 2224, 2864, 3216, 3336, 4288, 4296, 4448, 5728, 6432, 6672, 8576, 8592, 8896, 9313, 11456, 11993, 12864, 13344, 17184, 17792, 18626, 22912, 23986, 24881, 25728, 26688, 27939, 34368, 35979, 37252, 47972, 49762, 53376, 55878, 68736, 71958, 74504, 74643, 95944, 99524, 111756, 143916, 149008, 149286, 191888, 199048, 223512, 287832, 298016, 298572, 383776, 398096, 447024, 575664, 596032, 597144, 767552, 796192, 894048, 1151328, 1192064, 1194288, 1535104, 1592384, 1667027, 1788096, 2302656, 2388576, 3184768, 3334054, 3576192, 4605312, 4777152, 5001081, 6668108, 9554304, 10002162, 13336216, 20004324, 26672432, 40008648, 53344864, 80017296, 106689728, 160034592, 213379456, 320069184, 640138368]

約数ペア:

[(1, 640138368), (2, 320069184), (3, 213379456), (4, 160034592), (6, 106689728), (8, 80017296), (12, 53344864), (16, 40008648), (24, 26672432), (32, 20004324), (48, 13336216), (64, 10002162), (67, 9554304), (96, 6668108), (128, 5001081), (134, 4777152), (139, 4605312), (179, 3576192), (192, 3334054), (201, 3184768), (268, 2388576), (278, 2302656), (358, 1788096), (384, 1667027), (402, 1592384), (417, 1535104), (536, 1194288), (537, 1192064), (556, 1151328), (716, 894048), (804, 796192), (834, 767552), (1072, 597144), (1074, 596032), (1112, 575664), (1432, 447024), (1608, 398096), (1668, 383776), (2144, 298572), (2148, 298016), (2224, 287832), (2864, 223512), (3216, 199048), (3336, 191888), (4288, 149286), (4296, 149008), (4448, 143916), (5728, 111756), (6432, 99524), (6672, 95944), (8576, 74643), (8592, 74504), (8896, 71958), (9313, 68736), (11456, 55878), (11993, 53376), (12864, 49762), (13344, 47972), (17184, 37252), (17792, 35979), (18626, 34368), (22912, 27939), (23986, 26688), (24881, 25728)]