720958390

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{8627}}^1$

素因数の和:8832

約数の個数: 32

約数和(自身を含む): 1328781024

約数和(自身を除く): 607822634

約数列:

[1, 2, 5, 10, 61, 122, 137, 274, 305, 610, 685, 1370, 8357, 8627, 16714, 17254, 41785, 43135, 83570, 86270, 526247, 1052494, 1181899, 2363798, 2631235, 5262470, 5909495, 11818990, 72095839, 144191678, 360479195, 720958390]

約数ペア:

[(1, 720958390), (2, 360479195), (5, 144191678), (10, 72095839), (61, 11818990), (122, 5909495), (137, 5262470), (274, 2631235), (305, 2363798), (610, 1181899), (685, 1052494), (1370, 526247), (8357, 86270), (8627, 83570), (16714, 43135), (17254, 41785)]