123218478

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{397}}^1\times {\mathrm{401}}^1$

素因数の和:849

約数の個数: 48

約数和(自身を含む): 274553136

約数和(自身を除く): 151334658

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 397, 401, 774, 794, 802, 1191, 1203, 2382, 2406, 3573, 3609, 7146, 7218, 17071, 17243, 34142, 34486, 51213, 51729, 102426, 103458, 153639, 155187, 159197, 307278, 310374, 318394, 477591, 955182, 1432773, 2865546, 6845471, 13690942, 20536413, 41072826, 61609239, 123218478]

約数ペア:

[(1, 123218478), (2, 61609239), (3, 41072826), (6, 20536413), (9, 13690942), (18, 6845471), (43, 2865546), (86, 1432773), (129, 955182), (258, 477591), (387, 318394), (397, 310374), (401, 307278), (774, 159197), (794, 155187), (802, 153639), (1191, 103458), (1203, 102426), (2382, 51729), (2406, 51213), (3573, 34486), (3609, 34142), (7146, 17243), (7218, 17071)]