639720240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{2665501}}^1$

素因数の和:2665517

約数の個数: 40

約数和(自身を含む): 1983133488

約数和(自身を除く): 1343413248

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 2665501, 5331002, 7996503, 10662004, 13327505, 15993006, 21324008, 26655010, 31986012, 39982515, 42648016, 53310020, 63972024, 79965030, 106620040, 127944048, 159930060, 213240080, 319860120, 639720240]

約数ペア:

[(1, 639720240), (2, 319860120), (3, 213240080), (4, 159930060), (5, 127944048), (6, 106620040), (8, 79965030), (10, 63972024), (12, 53310020), (15, 42648016), (16, 39982515), (20, 31986012), (24, 26655010), (30, 21324008), (40, 15993006), (48, 13327505), (60, 10662004), (80, 7996503), (120, 5331002), (240, 2665501)]