20457980970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3142547}}^1$

素因数の和:3142595

約数の個数: 64

約数和(自身を含む): 57923444736

約数和(自身を除く): 37465463766

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 434, 465, 651, 930, 1085, 1302, 2170, 3255, 6510, 3142547, 6285094, 9427641, 15712735, 18855282, 21997829, 31425470, 43995658, 47138205, 65993487, 94276410, 97418957, 109989145, 131986974, 194837914, 219978290, 292256871, 329967435, 487094785, 584513742, 659934870, 681932699, 974189570, 1363865398, 1461284355, 2045798097, 2922568710, 3409663495, 4091596194, 6819326990, 10228990485, 20457980970]

約数ペア:

[(1, 20457980970), (2, 10228990485), (3, 6819326990), (5, 4091596194), (6, 3409663495), (7, 2922568710), (10, 2045798097), (14, 1461284355), (15, 1363865398), (21, 974189570), (30, 681932699), (31, 659934870), (35, 584513742), (42, 487094785), (62, 329967435), (70, 292256871), (93, 219978290), (105, 194837914), (155, 131986974), (186, 109989145), (210, 97418957), (217, 94276410), (310, 65993487), (434, 47138205), (465, 43995658), (651, 31425470), (930, 21997829), (1085, 18855282), (1302, 15712735), (2170, 9427641), (3255, 6285094), (6510, 3142547)]