648240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:126

約数の個数: 80

約数和(自身を含む): 2092128

約数和(自身を除く): 1443888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 48, 60, 73, 74, 80, 111, 120, 146, 148, 185, 219, 222, 240, 292, 296, 365, 370, 438, 444, 555, 584, 592, 730, 740, 876, 888, 1095, 1110, 1168, 1460, 1480, 1752, 1776, 2190, 2220, 2701, 2920, 2960, 3504, 4380, 4440, 5402, 5840, 8103, 8760, 8880, 10804, 13505, 16206, 17520, 21608, 27010, 32412, 40515, 43216, 54020, 64824, 81030, 108040, 129648, 162060, 216080, 324120, 648240]

約数ペア:

[(1, 648240), (2, 324120), (3, 216080), (4, 162060), (5, 129648), (6, 108040), (8, 81030), (10, 64824), (12, 54020), (15, 43216), (16, 40515), (20, 32412), (24, 27010), (30, 21608), (37, 17520), (40, 16206), (48, 13505), (60, 10804), (73, 8880), (74, 8760), (80, 8103), (111, 5840), (120, 5402), (146, 4440), (148, 4380), (185, 3504), (219, 2960), (222, 2920), (240, 2701), (292, 2220), (296, 2190), (365, 1776), (370, 1752), (438, 1480), (444, 1460), (555, 1168), (584, 1110), (592, 1095), (730, 888), (740, 876)]