388479320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{26903}}^1$

素因数の和:26952

約数の個数: 48

約数和(自身を含む): 922538160

約数和(自身を除く): 534058840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 7220, 14440, 26903, 53806, 107612, 134515, 215224, 269030, 511157, 538060, 1022314, 1076120, 2044628, 2555785, 4089256, 5111570, 9711983, 10223140, 19423966, 20446280, 38847932, 48559915, 77695864, 97119830, 194239660, 388479320]

約数ペア:

[(1, 388479320), (2, 194239660), (4, 97119830), (5, 77695864), (8, 48559915), (10, 38847932), (19, 20446280), (20, 19423966), (38, 10223140), (40, 9711983), (76, 5111570), (95, 4089256), (152, 2555785), (190, 2044628), (361, 1076120), (380, 1022314), (722, 538060), (760, 511157), (1444, 269030), (1805, 215224), (2888, 134515), (3610, 107612), (7220, 53806), (14440, 26903)]