72417280

素因数分解:

$2^{16}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:67

約数の個数: 136

約数和(自身を含む): 198179352

約数和(自身を除く): 125762072

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, 256, 260, 272, 320, 340, 416, 442, 512, 520, 544, 640, 680, 832, 884, 1024, 1040, 1088, 1105, 1280, 1360, 1664, 1768, 2048, 2080, 2176, 2210, 2560, 2720, 3328, 3536, 4096, 4160, 4352, 4420, 5120, 5440, 6656, 7072, 8192, 8320, 8704, 8840, 10240, 10880, 13312, 14144, 16384, 16640, 17408, 17680, 20480, 21760, 26624, 28288, 32768, 33280, 34816, 35360, 40960, 43520, 53248, 56576, 65536, 66560, 69632, 70720, 81920, 87040, 106496, 113152, 133120, 139264, 141440, 163840, 174080, 212992, 226304, 266240, 278528, 282880, 327680, 348160, 425984, 452608, 532480, 557056, 565760, 696320, 851968, 905216, 1064960, 1114112, 1131520, 1392640, 1810432, 2129920, 2263040, 2785280, 3620864, 4259840, 4526080, 5570560, 7241728, 9052160, 14483456, 18104320, 36208640, 72417280]

約数ペア:

[(1, 72417280), (2, 36208640), (4, 18104320), (5, 14483456), (8, 9052160), (10, 7241728), (13, 5570560), (16, 4526080), (17, 4259840), (20, 3620864), (26, 2785280), (32, 2263040), (34, 2129920), (40, 1810432), (52, 1392640), (64, 1131520), (65, 1114112), (68, 1064960), (80, 905216), (85, 851968), (104, 696320), (128, 565760), (130, 557056), (136, 532480), (160, 452608), (170, 425984), (208, 348160), (221, 327680), (256, 282880), (260, 278528), (272, 266240), (320, 226304), (340, 212992), (416, 174080), (442, 163840), (512, 141440), (520, 139264), (544, 133120), (640, 113152), (680, 106496), (832, 87040), (884, 81920), (1024, 70720), (1040, 69632), (1088, 66560), (1105, 65536), (1280, 56576), (1360, 53248), (1664, 43520), (1768, 40960), (2048, 35360), (2080, 34816), (2176, 33280), (2210, 32768), (2560, 28288), (2720, 26624), (3328, 21760), (3536, 20480), (4096, 17680), (4160, 17408), (4352, 16640), (4420, 16384), (5120, 14144), (5440, 13312), (6656, 10880), (7072, 10240), (8192, 8840), (8320, 8704)]