64413440

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:127

約数の個数: 216

約数和(自身を含む): 195733440

約数和(自身を除く): 131320000

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 79, 80, 91, 98, 104, 112, 128, 130, 140, 158, 160, 182, 196, 208, 224, 245, 256, 260, 280, 316, 320, 364, 392, 395, 416, 448, 455, 490, 520, 553, 560, 632, 637, 640, 728, 784, 790, 832, 896, 910, 980, 1027, 1040, 1106, 1120, 1264, 1274, 1280, 1456, 1568, 1580, 1664, 1792, 1820, 1960, 2054, 2080, 2212, 2240, 2528, 2548, 2765, 2912, 3136, 3160, 3185, 3328, 3640, 3871, 3920, 4108, 4160, 4424, 4480, 5056, 5096, 5135, 5530, 5824, 6272, 6320, 6370, 7189, 7280, 7742, 7840, 8216, 8320, 8848, 8960, 10112, 10192, 10270, 11060, 11648, 12544, 12640, 12740, 14378, 14560, 15484, 15680, 16432, 16640, 17696, 19355, 20224, 20384, 20540, 22120, 23296, 25280, 25480, 28756, 29120, 30968, 31360, 32864, 35392, 35945, 38710, 40768, 41080, 44240, 50323, 50560, 50960, 57512, 58240, 61936, 62720, 65728, 70784, 71890, 77420, 81536, 82160, 88480, 100646, 101120, 101920, 115024, 116480, 123872, 131456, 141568, 143780, 154840, 163072, 164320, 176960, 201292, 203840, 230048, 247744, 251615, 262912, 287560, 309680, 328640, 353920, 402584, 407680, 460096, 495488, 503230, 575120, 619360, 657280, 707840, 805168, 815360, 920192, 990976, 1006460, 1150240, 1238720, 1314560, 1610336, 1840384, 2012920, 2300480, 2477440, 3220672, 4025840, 4600960, 4954880, 6441344, 8051680, 9201920, 12882688, 16103360, 32206720, 64413440]

約数ペア:

[(1, 64413440), (2, 32206720), (4, 16103360), (5, 12882688), (7, 9201920), (8, 8051680), (10, 6441344), (13, 4954880), (14, 4600960), (16, 4025840), (20, 3220672), (26, 2477440), (28, 2300480), (32, 2012920), (35, 1840384), (40, 1610336), (49, 1314560), (52, 1238720), (56, 1150240), (64, 1006460), (65, 990976), (70, 920192), (79, 815360), (80, 805168), (91, 707840), (98, 657280), (104, 619360), (112, 575120), (128, 503230), (130, 495488), (140, 460096), (158, 407680), (160, 402584), (182, 353920), (196, 328640), (208, 309680), (224, 287560), (245, 262912), (256, 251615), (260, 247744), (280, 230048), (316, 203840), (320, 201292), (364, 176960), (392, 164320), (395, 163072), (416, 154840), (448, 143780), (455, 141568), (490, 131456), (520, 123872), (553, 116480), (560, 115024), (632, 101920), (637, 101120), (640, 100646), (728, 88480), (784, 82160), (790, 81536), (832, 77420), (896, 71890), (910, 70784), (980, 65728), (1027, 62720), (1040, 61936), (1106, 58240), (1120, 57512), (1264, 50960), (1274, 50560), (1280, 50323), (1456, 44240), (1568, 41080), (1580, 40768), (1664, 38710), (1792, 35945), (1820, 35392), (1960, 32864), (2054, 31360), (2080, 30968), (2212, 29120), (2240, 28756), (2528, 25480), (2548, 25280), (2765, 23296), (2912, 22120), (3136, 20540), (3160, 20384), (3185, 20224), (3328, 19355), (3640, 17696), (3871, 16640), (3920, 16432), (4108, 15680), (4160, 15484), (4424, 14560), (4480, 14378), (5056, 12740), (5096, 12640), (5135, 12544), (5530, 11648), (5824, 11060), (6272, 10270), (6320, 10192), (6370, 10112), (7189, 8960), (7280, 8848), (7742, 8320), (7840, 8216)]