686481920

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:266

約数の個数: 160

約数和(自身を含む): 1750066560

約数和(自身を除く): 1063584640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 89, 92, 115, 128, 131, 160, 178, 184, 230, 256, 262, 320, 356, 368, 445, 460, 512, 524, 640, 655, 712, 736, 890, 920, 1048, 1280, 1310, 1424, 1472, 1780, 1840, 2047, 2096, 2560, 2620, 2848, 2944, 3013, 3560, 3680, 4094, 4192, 5240, 5696, 5888, 6026, 7120, 7360, 8188, 8384, 10235, 10480, 11392, 11659, 11776, 12052, 14240, 14720, 15065, 16376, 16768, 20470, 20960, 22784, 23318, 24104, 28480, 29440, 30130, 32752, 33536, 40940, 41920, 45568, 46636, 48208, 56960, 58295, 58880, 60260, 65504, 67072, 81880, 83840, 93272, 96416, 113920, 116590, 120520, 131008, 163760, 167680, 186544, 192832, 227840, 233180, 241040, 262016, 268157, 327520, 335360, 373088, 385664, 466360, 482080, 524032, 536314, 655040, 746176, 771328, 932720, 964160, 1048064, 1072628, 1310080, 1340785, 1492352, 1542656, 1865440, 1928320, 2145256, 2620160, 2681570, 2984704, 3730880, 3856640, 4290512, 5240320, 5363140, 5969408, 7461760, 7713280, 8581024, 10726280, 14923520, 17162048, 21452560, 29847040, 34324096, 42905120, 68648192, 85810240, 137296384, 171620480, 343240960, 686481920]

約数ペア:

[(1, 686481920), (2, 343240960), (4, 171620480), (5, 137296384), (8, 85810240), (10, 68648192), (16, 42905120), (20, 34324096), (23, 29847040), (32, 21452560), (40, 17162048), (46, 14923520), (64, 10726280), (80, 8581024), (89, 7713280), (92, 7461760), (115, 5969408), (128, 5363140), (131, 5240320), (160, 4290512), (178, 3856640), (184, 3730880), (230, 2984704), (256, 2681570), (262, 2620160), (320, 2145256), (356, 1928320), (368, 1865440), (445, 1542656), (460, 1492352), (512, 1340785), (524, 1310080), (640, 1072628), (655, 1048064), (712, 964160), (736, 932720), (890, 771328), (920, 746176), (1048, 655040), (1280, 536314), (1310, 524032), (1424, 482080), (1472, 466360), (1780, 385664), (1840, 373088), (2047, 335360), (2096, 327520), (2560, 268157), (2620, 262016), (2848, 241040), (2944, 233180), (3013, 227840), (3560, 192832), (3680, 186544), (4094, 167680), (4192, 163760), (5240, 131008), (5696, 120520), (5888, 116590), (6026, 113920), (7120, 96416), (7360, 93272), (8188, 83840), (8384, 81880), (10235, 67072), (10480, 65504), (11392, 60260), (11659, 58880), (11776, 58295), (12052, 56960), (14240, 48208), (14720, 46636), (15065, 45568), (16376, 41920), (16768, 40940), (20470, 33536), (20960, 32752), (22784, 30130), (23318, 29440), (24104, 28480)]