320843140

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{347}}^1\times {\mathrm{557}}^1$

素因数の和:996

約数の個数: 48

約数和(自身を含む): 685081152

約数和(自身を除く): 364238012

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 347, 415, 557, 694, 830, 1114, 1388, 1660, 1735, 2228, 2785, 3470, 5570, 6940, 11140, 28801, 46231, 57602, 92462, 115204, 144005, 184924, 193279, 231155, 288010, 386558, 462310, 576020, 773116, 924620, 966395, 1932790, 3865580, 16042157, 32084314, 64168628, 80210785, 160421570, 320843140]

約数ペア:

[(1, 320843140), (2, 160421570), (4, 80210785), (5, 64168628), (10, 32084314), (20, 16042157), (83, 3865580), (166, 1932790), (332, 966395), (347, 924620), (415, 773116), (557, 576020), (694, 462310), (830, 386558), (1114, 288010), (1388, 231155), (1660, 193279), (1735, 184924), (2228, 144005), (2785, 115204), (3470, 92462), (5570, 57602), (6940, 46231), (11140, 28801)]