77987840

素因数分解:

$2^{17}\times 5^1\times 7^1\times {\mathrm{17}}^1$

素因数の和:63

約数の個数: 144

約数和(自身を含む): 226491552

約数和(自身を除く): 148503712

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 64, 68, 70, 80, 85, 112, 119, 128, 136, 140, 160, 170, 224, 238, 256, 272, 280, 320, 340, 448, 476, 512, 544, 560, 595, 640, 680, 896, 952, 1024, 1088, 1120, 1190, 1280, 1360, 1792, 1904, 2048, 2176, 2240, 2380, 2560, 2720, 3584, 3808, 4096, 4352, 4480, 4760, 5120, 5440, 7168, 7616, 8192, 8704, 8960, 9520, 10240, 10880, 14336, 15232, 16384, 17408, 17920, 19040, 20480, 21760, 28672, 30464, 32768, 34816, 35840, 38080, 40960, 43520, 57344, 60928, 65536, 69632, 71680, 76160, 81920, 87040, 114688, 121856, 131072, 139264, 143360, 152320, 163840, 174080, 229376, 243712, 278528, 286720, 304640, 327680, 348160, 458752, 487424, 557056, 573440, 609280, 655360, 696320, 917504, 974848, 1114112, 1146880, 1218560, 1392640, 1949696, 2228224, 2293760, 2437120, 2785280, 3899392, 4587520, 4874240, 5570560, 7798784, 9748480, 11141120, 15597568, 19496960, 38993920, 77987840]

約数ペア:

[(1, 77987840), (2, 38993920), (4, 19496960), (5, 15597568), (7, 11141120), (8, 9748480), (10, 7798784), (14, 5570560), (16, 4874240), (17, 4587520), (20, 3899392), (28, 2785280), (32, 2437120), (34, 2293760), (35, 2228224), (40, 1949696), (56, 1392640), (64, 1218560), (68, 1146880), (70, 1114112), (80, 974848), (85, 917504), (112, 696320), (119, 655360), (128, 609280), (136, 573440), (140, 557056), (160, 487424), (170, 458752), (224, 348160), (238, 327680), (256, 304640), (272, 286720), (280, 278528), (320, 243712), (340, 229376), (448, 174080), (476, 163840), (512, 152320), (544, 143360), (560, 139264), (595, 131072), (640, 121856), (680, 114688), (896, 87040), (952, 81920), (1024, 76160), (1088, 71680), (1120, 69632), (1190, 65536), (1280, 60928), (1360, 57344), (1792, 43520), (1904, 40960), (2048, 38080), (2176, 35840), (2240, 34816), (2380, 32768), (2560, 30464), (2720, 28672), (3584, 21760), (3808, 20480), (4096, 19040), (4352, 17920), (4480, 17408), (4760, 16384), (5120, 15232), (5440, 14336), (7168, 10880), (7616, 10240), (8192, 9520), (8704, 8960)]