61581940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{7211}}^1$

素因数の和:7288

約数の個数: 48

約数和(自身を含む): 150240384

約数和(自身を除く): 88658444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 4270, 7211, 8540, 14422, 28844, 36055, 50477, 72110, 100954, 144220, 201908, 252385, 439871, 504770, 879742, 1009540, 1759484, 2199355, 3079097, 4398710, 6158194, 8797420, 12316388, 15395485, 30790970, 61581940]

約数ペア:

[(1, 61581940), (2, 30790970), (4, 15395485), (5, 12316388), (7, 8797420), (10, 6158194), (14, 4398710), (20, 3079097), (28, 2199355), (35, 1759484), (61, 1009540), (70, 879742), (122, 504770), (140, 439871), (244, 252385), (305, 201908), (427, 144220), (610, 100954), (854, 72110), (1220, 50477), (1708, 36055), (2135, 28844), (4270, 14422), (7211, 8540)]