181388380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{947}}^1$

素因数の和:1174

約数の個数: 48

約数和(自身を含む): 390037536

約数和(自身を除く): 208649156

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 157, 244, 305, 314, 610, 628, 785, 947, 1220, 1570, 1894, 3140, 3788, 4735, 9470, 9577, 18940, 19154, 38308, 47885, 57767, 95770, 115534, 148679, 191540, 231068, 288835, 297358, 577670, 594716, 743395, 1155340, 1486790, 2973580, 9069419, 18138838, 36277676, 45347095, 90694190, 181388380]

約数ペア:

[(1, 181388380), (2, 90694190), (4, 45347095), (5, 36277676), (10, 18138838), (20, 9069419), (61, 2973580), (122, 1486790), (157, 1155340), (244, 743395), (305, 594716), (314, 577670), (610, 297358), (628, 288835), (785, 231068), (947, 191540), (1220, 148679), (1570, 115534), (1894, 95770), (3140, 57767), (3788, 47885), (4735, 38308), (9470, 19154), (9577, 18940)]