381639680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{131}}^1\times {\mathrm{569}}^1$

素因数の和:725

約数の個数: 88

約数和(自身を含む): 924097680

約数和(自身を除く): 542458000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 160, 256, 262, 320, 512, 524, 569, 640, 655, 1024, 1048, 1138, 1280, 1310, 2096, 2276, 2560, 2620, 2845, 4192, 4552, 5120, 5240, 5690, 8384, 9104, 10480, 11380, 16768, 18208, 20960, 22760, 33536, 36416, 41920, 45520, 67072, 72832, 74539, 83840, 91040, 134144, 145664, 149078, 167680, 182080, 291328, 298156, 335360, 364160, 372695, 582656, 596312, 670720, 728320, 745390, 1192624, 1456640, 1490780, 2385248, 2913280, 2981560, 4770496, 5963120, 9540992, 11926240, 19081984, 23852480, 38163968, 47704960, 76327936, 95409920, 190819840, 381639680]

約数ペア:

[(1, 381639680), (2, 190819840), (4, 95409920), (5, 76327936), (8, 47704960), (10, 38163968), (16, 23852480), (20, 19081984), (32, 11926240), (40, 9540992), (64, 5963120), (80, 4770496), (128, 2981560), (131, 2913280), (160, 2385248), (256, 1490780), (262, 1456640), (320, 1192624), (512, 745390), (524, 728320), (569, 670720), (640, 596312), (655, 582656), (1024, 372695), (1048, 364160), (1138, 335360), (1280, 298156), (1310, 291328), (2096, 182080), (2276, 167680), (2560, 149078), (2620, 145664), (2845, 134144), (4192, 91040), (4552, 83840), (5120, 74539), (5240, 72832), (5690, 67072), (8384, 45520), (9104, 41920), (10480, 36416), (11380, 33536), (16768, 22760), (18208, 20960)]