399993624

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{292393}}^1$

素因数の和:292424

約数の個数: 48

約数和(自身を含む): 1140336600

約数和(自身を除く): 740342976

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368, 292393, 584786, 877179, 1169572, 1754358, 2339144, 2631537, 3508716, 5263074, 5555467, 7017432, 10526148, 11110934, 16666401, 21052296, 22221868, 33332802, 44443736, 49999203, 66665604, 99998406, 133331208, 199996812, 399993624]

約数ペア:

[(1, 399993624), (2, 199996812), (3, 133331208), (4, 99998406), (6, 66665604), (8, 49999203), (9, 44443736), (12, 33332802), (18, 22221868), (19, 21052296), (24, 16666401), (36, 11110934), (38, 10526148), (57, 7017432), (72, 5555467), (76, 5263074), (114, 3508716), (152, 2631537), (171, 2339144), (228, 1754358), (342, 1169572), (456, 877179), (684, 584786), (1368, 292393)]