30720256

素因数分解:

$2^8\times 7^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 108

約数和(自身を含む): 74565120

約数和(自身を除く): 43844864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 49, 56, 62, 64, 79, 98, 112, 124, 128, 158, 196, 217, 224, 248, 256, 316, 392, 434, 448, 496, 553, 632, 784, 868, 896, 992, 1106, 1264, 1519, 1568, 1736, 1792, 1984, 2212, 2449, 2528, 3038, 3136, 3472, 3871, 3968, 4424, 4898, 5056, 6076, 6272, 6944, 7742, 7936, 8848, 9796, 10112, 12152, 12544, 13888, 15484, 17143, 17696, 19592, 20224, 24304, 27776, 30968, 34286, 35392, 39184, 48608, 55552, 61936, 68572, 70784, 78368, 97216, 120001, 123872, 137144, 141568, 156736, 194432, 240002, 247744, 274288, 313472, 388864, 480004, 495488, 548576, 626944, 960008, 990976, 1097152, 1920016, 2194304, 3840032, 4388608, 7680064, 15360128, 30720256]

約数ペア:

[(1, 30720256), (2, 15360128), (4, 7680064), (7, 4388608), (8, 3840032), (14, 2194304), (16, 1920016), (28, 1097152), (31, 990976), (32, 960008), (49, 626944), (56, 548576), (62, 495488), (64, 480004), (79, 388864), (98, 313472), (112, 274288), (124, 247744), (128, 240002), (158, 194432), (196, 156736), (217, 141568), (224, 137144), (248, 123872), (256, 120001), (316, 97216), (392, 78368), (434, 70784), (448, 68572), (496, 61936), (553, 55552), (632, 48608), (784, 39184), (868, 35392), (896, 34286), (992, 30968), (1106, 27776), (1264, 24304), (1519, 20224), (1568, 19592), (1736, 17696), (1792, 17143), (1984, 15484), (2212, 13888), (2449, 12544), (2528, 12152), (3038, 10112), (3136, 9796), (3472, 8848), (3871, 7936), (3968, 7742), (4424, 6944), (4898, 6272), (5056, 6076)]