128373728

素因数分解:

$2^5\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:213

約数の個数: 144

約数和(自身を含む): 321753600

約数和(自身を除く): 193379872

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 32, 38, 49, 56, 62, 76, 98, 112, 124, 133, 139, 152, 196, 217, 224, 248, 266, 278, 304, 392, 434, 496, 532, 556, 589, 608, 784, 868, 931, 973, 992, 1064, 1112, 1178, 1519, 1568, 1736, 1862, 1946, 2128, 2224, 2356, 2641, 3038, 3472, 3724, 3892, 4123, 4256, 4309, 4448, 4712, 5282, 6076, 6811, 6944, 7448, 7784, 8246, 8618, 9424, 10564, 12152, 13622, 14896, 15568, 16492, 17236, 18487, 18848, 21128, 24304, 27244, 28861, 29792, 30163, 31136, 32984, 34472, 36974, 42256, 48608, 54488, 57722, 60326, 65968, 68944, 73948, 81871, 84512, 108976, 115444, 120652, 129409, 131936, 137888, 147896, 163742, 211141, 217952, 230888, 241304, 258818, 295792, 327484, 422282, 461776, 482608, 517636, 573097, 591584, 654968, 844564, 923552, 965216, 1035272, 1146194, 1309936, 1689128, 2070544, 2292388, 2619872, 3378256, 4011679, 4141088, 4584776, 6756512, 8023358, 9169552, 16046716, 18339104, 32093432, 64186864, 128373728]

約数ペア:

[(1, 128373728), (2, 64186864), (4, 32093432), (7, 18339104), (8, 16046716), (14, 9169552), (16, 8023358), (19, 6756512), (28, 4584776), (31, 4141088), (32, 4011679), (38, 3378256), (49, 2619872), (56, 2292388), (62, 2070544), (76, 1689128), (98, 1309936), (112, 1146194), (124, 1035272), (133, 965216), (139, 923552), (152, 844564), (196, 654968), (217, 591584), (224, 573097), (248, 517636), (266, 482608), (278, 461776), (304, 422282), (392, 327484), (434, 295792), (496, 258818), (532, 241304), (556, 230888), (589, 217952), (608, 211141), (784, 163742), (868, 147896), (931, 137888), (973, 131936), (992, 129409), (1064, 120652), (1112, 115444), (1178, 108976), (1519, 84512), (1568, 81871), (1736, 73948), (1862, 68944), (1946, 65968), (2128, 60326), (2224, 57722), (2356, 54488), (2641, 48608), (3038, 42256), (3472, 36974), (3724, 34472), (3892, 32984), (4123, 31136), (4256, 30163), (4309, 29792), (4448, 28861), (4712, 27244), (5282, 24304), (6076, 21128), (6811, 18848), (6944, 18487), (7448, 17236), (7784, 16492), (8246, 15568), (8618, 14896), (9424, 13622), (10564, 12152)]