638402280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{280001}}^1$

素因数の和:280034

約数の個数: 64

約数和(自身を含む): 2016014400

約数和(自身を除く): 1377612120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 280001, 560002, 840003, 1120004, 1400005, 1680006, 2240008, 2800010, 3360012, 4200015, 5320019, 5600020, 6720024, 8400030, 10640038, 11200040, 15960057, 16800060, 21280076, 26600095, 31920114, 33600120, 42560152, 53200190, 63840228, 79800285, 106400380, 127680456, 159600570, 212800760, 319201140, 638402280]

約数ペア:

[(1, 638402280), (2, 319201140), (3, 212800760), (4, 159600570), (5, 127680456), (6, 106400380), (8, 79800285), (10, 63840228), (12, 53200190), (15, 42560152), (19, 33600120), (20, 31920114), (24, 26600095), (30, 21280076), (38, 16800060), (40, 15960057), (57, 11200040), (60, 10640038), (76, 8400030), (95, 6720024), (114, 5600020), (120, 5320019), (152, 4200015), (190, 3360012), (228, 2800010), (285, 2240008), (380, 1680006), (456, 1400005), (570, 1120004), (760, 840003), (1140, 560002), (2280, 280001)]