251371520

素因数分解:

$2^{13}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:86

約数の個数: 168

約数和(自身を含む): 674127684

約数和(自身を除く): 422756164

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 128, 136, 152, 160, 170, 190, 256, 272, 304, 320, 323, 340, 361, 380, 512, 544, 608, 640, 646, 680, 722, 760, 1024, 1088, 1216, 1280, 1292, 1360, 1444, 1520, 1615, 1805, 2048, 2176, 2432, 2560, 2584, 2720, 2888, 3040, 3230, 3610, 4096, 4352, 4864, 5120, 5168, 5440, 5776, 6080, 6137, 6460, 7220, 8192, 8704, 9728, 10240, 10336, 10880, 11552, 12160, 12274, 12920, 14440, 17408, 19456, 20480, 20672, 21760, 23104, 24320, 24548, 25840, 28880, 30685, 34816, 38912, 40960, 41344, 43520, 46208, 48640, 49096, 51680, 57760, 61370, 69632, 77824, 82688, 87040, 92416, 97280, 98192, 103360, 115520, 122740, 139264, 155648, 165376, 174080, 184832, 194560, 196384, 206720, 231040, 245480, 330752, 348160, 369664, 389120, 392768, 413440, 462080, 490960, 661504, 696320, 739328, 778240, 785536, 826880, 924160, 981920, 1323008, 1478656, 1571072, 1653760, 1848320, 1963840, 2646016, 2957312, 3142144, 3307520, 3696640, 3927680, 6284288, 6615040, 7393280, 7855360, 12568576, 13230080, 14786560, 15710720, 25137152, 31421440, 50274304, 62842880, 125685760, 251371520]

約数ペア:

[(1, 251371520), (2, 125685760), (4, 62842880), (5, 50274304), (8, 31421440), (10, 25137152), (16, 15710720), (17, 14786560), (19, 13230080), (20, 12568576), (32, 7855360), (34, 7393280), (38, 6615040), (40, 6284288), (64, 3927680), (68, 3696640), (76, 3307520), (80, 3142144), (85, 2957312), (95, 2646016), (128, 1963840), (136, 1848320), (152, 1653760), (160, 1571072), (170, 1478656), (190, 1323008), (256, 981920), (272, 924160), (304, 826880), (320, 785536), (323, 778240), (340, 739328), (361, 696320), (380, 661504), (512, 490960), (544, 462080), (608, 413440), (640, 392768), (646, 389120), (680, 369664), (722, 348160), (760, 330752), (1024, 245480), (1088, 231040), (1216, 206720), (1280, 196384), (1292, 194560), (1360, 184832), (1444, 174080), (1520, 165376), (1615, 155648), (1805, 139264), (2048, 122740), (2176, 115520), (2432, 103360), (2560, 98192), (2584, 97280), (2720, 92416), (2888, 87040), (3040, 82688), (3230, 77824), (3610, 69632), (4096, 61370), (4352, 57760), (4864, 51680), (5120, 49096), (5168, 48640), (5440, 46208), (5776, 43520), (6080, 41344), (6137, 40960), (6460, 38912), (7220, 34816), (8192, 30685), (8704, 28880), (9728, 25840), (10240, 24548), (10336, 24320), (10880, 23104), (11552, 21760), (12160, 20672), (12274, 20480), (12920, 19456), (14440, 17408)]