64779520

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1$

素因数の和:280

約数の個数: 144

約数和(自身を含む): 177705360

約数和(自身を除く): 112925840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 128, 130, 136, 160, 170, 208, 221, 229, 256, 260, 272, 320, 340, 416, 442, 458, 520, 544, 640, 680, 832, 884, 916, 1040, 1088, 1105, 1145, 1280, 1360, 1664, 1768, 1832, 2080, 2176, 2210, 2290, 2720, 2977, 3328, 3536, 3664, 3893, 4160, 4352, 4420, 4580, 5440, 5954, 7072, 7328, 7786, 8320, 8840, 9160, 10880, 11908, 14144, 14656, 14885, 15572, 16640, 17680, 18320, 19465, 21760, 23816, 28288, 29312, 29770, 31144, 35360, 36640, 38930, 47632, 50609, 56576, 58624, 59540, 62288, 70720, 73280, 77860, 95264, 101218, 119080, 124576, 141440, 146560, 155720, 190528, 202436, 238160, 249152, 253045, 282880, 293120, 311440, 381056, 404872, 476320, 498304, 506090, 622880, 762112, 809744, 952640, 996608, 1012180, 1245760, 1619488, 1905280, 2024360, 2491520, 3238976, 3810560, 4048720, 4983040, 6477952, 8097440, 12955904, 16194880, 32389760, 64779520]

約数ペア:

[(1, 64779520), (2, 32389760), (4, 16194880), (5, 12955904), (8, 8097440), (10, 6477952), (13, 4983040), (16, 4048720), (17, 3810560), (20, 3238976), (26, 2491520), (32, 2024360), (34, 1905280), (40, 1619488), (52, 1245760), (64, 1012180), (65, 996608), (68, 952640), (80, 809744), (85, 762112), (104, 622880), (128, 506090), (130, 498304), (136, 476320), (160, 404872), (170, 381056), (208, 311440), (221, 293120), (229, 282880), (256, 253045), (260, 249152), (272, 238160), (320, 202436), (340, 190528), (416, 155720), (442, 146560), (458, 141440), (520, 124576), (544, 119080), (640, 101218), (680, 95264), (832, 77860), (884, 73280), (916, 70720), (1040, 62288), (1088, 59540), (1105, 58624), (1145, 56576), (1280, 50609), (1360, 47632), (1664, 38930), (1768, 36640), (1832, 35360), (2080, 31144), (2176, 29770), (2210, 29312), (2290, 28288), (2720, 23816), (2977, 21760), (3328, 19465), (3536, 18320), (3664, 17680), (3893, 16640), (4160, 15572), (4352, 14885), (4420, 14656), (4580, 14144), (5440, 11908), (5954, 10880), (7072, 9160), (7328, 8840), (7786, 8320)]