208240640

素因数分解:

$2^{15}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:107

約数の個数: 128

約数和(自身を含む): 528474240

約数和(自身を除く): 320233600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 124, 128, 155, 160, 164, 205, 248, 256, 310, 320, 328, 410, 496, 512, 620, 640, 656, 820, 992, 1024, 1240, 1271, 1280, 1312, 1640, 1984, 2048, 2480, 2542, 2560, 2624, 3280, 3968, 4096, 4960, 5084, 5120, 5248, 6355, 6560, 7936, 8192, 9920, 10168, 10240, 10496, 12710, 13120, 15872, 16384, 19840, 20336, 20480, 20992, 25420, 26240, 31744, 32768, 39680, 40672, 40960, 41984, 50840, 52480, 63488, 79360, 81344, 81920, 83968, 101680, 104960, 126976, 158720, 162688, 163840, 167936, 203360, 209920, 253952, 317440, 325376, 335872, 406720, 419840, 507904, 634880, 650752, 671744, 813440, 839680, 1015808, 1269760, 1301504, 1343488, 1626880, 1679360, 2539520, 2603008, 3253760, 3358720, 5079040, 5206016, 6507520, 6717440, 10412032, 13015040, 20824064, 26030080, 41648128, 52060160, 104120320, 208240640]

約数ペア:

[(1, 208240640), (2, 104120320), (4, 52060160), (5, 41648128), (8, 26030080), (10, 20824064), (16, 13015040), (20, 10412032), (31, 6717440), (32, 6507520), (40, 5206016), (41, 5079040), (62, 3358720), (64, 3253760), (80, 2603008), (82, 2539520), (124, 1679360), (128, 1626880), (155, 1343488), (160, 1301504), (164, 1269760), (205, 1015808), (248, 839680), (256, 813440), (310, 671744), (320, 650752), (328, 634880), (410, 507904), (496, 419840), (512, 406720), (620, 335872), (640, 325376), (656, 317440), (820, 253952), (992, 209920), (1024, 203360), (1240, 167936), (1271, 163840), (1280, 162688), (1312, 158720), (1640, 126976), (1984, 104960), (2048, 101680), (2480, 83968), (2542, 81920), (2560, 81344), (2624, 79360), (3280, 63488), (3968, 52480), (4096, 50840), (4960, 41984), (5084, 40960), (5120, 40672), (5248, 39680), (6355, 32768), (6560, 31744), (7936, 26240), (8192, 25420), (9920, 20992), (10168, 20480), (10240, 20336), (10496, 19840), (12710, 16384), (13120, 15872)]