291220956

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{1783}}^1$

素因数の和:2155

約数の個数: 72

約数和(自身を含む): 795485600

約数和(自身を除く): 504264644

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 349, 468, 698, 1047, 1396, 1783, 2094, 3141, 3566, 4188, 4537, 5349, 6282, 7132, 9074, 10698, 12564, 13611, 16047, 18148, 21396, 23179, 27222, 32094, 40833, 46358, 54444, 64188, 69537, 81666, 92716, 139074, 163332, 208611, 278148, 417222, 622267, 834444, 1244534, 1866801, 2489068, 3733602, 5600403, 7467204, 8089471, 11200806, 16178942, 22401612, 24268413, 32357884, 48536826, 72805239, 97073652, 145610478, 291220956]

約数ペア:

[(1, 291220956), (2, 145610478), (3, 97073652), (4, 72805239), (6, 48536826), (9, 32357884), (12, 24268413), (13, 22401612), (18, 16178942), (26, 11200806), (36, 8089471), (39, 7467204), (52, 5600403), (78, 3733602), (117, 2489068), (156, 1866801), (234, 1244534), (349, 834444), (468, 622267), (698, 417222), (1047, 278148), (1396, 208611), (1783, 163332), (2094, 139074), (3141, 92716), (3566, 81666), (4188, 69537), (4537, 64188), (5349, 54444), (6282, 46358), (7132, 40833), (9074, 32094), (10698, 27222), (12564, 23179), (13611, 21396), (16047, 18148)]