20558370

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{439}}^1$

素因数の和:679

約数の個数: 64

約数和(自身を含む): 56770560

約数和(自身を除く): 36212190

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 223, 439, 446, 669, 878, 1115, 1317, 1338, 1561, 2195, 2230, 2634, 3073, 3122, 3345, 4390, 4683, 6146, 6585, 6690, 7805, 9219, 9366, 13170, 15365, 15610, 18438, 23415, 30730, 46095, 46830, 92190, 97897, 195794, 293691, 489485, 587382, 685279, 978970, 1370558, 1468455, 2055837, 2936910, 3426395, 4111674, 6852790, 10279185, 20558370]

約数ペア:

[(1, 20558370), (2, 10279185), (3, 6852790), (5, 4111674), (6, 3426395), (7, 2936910), (10, 2055837), (14, 1468455), (15, 1370558), (21, 978970), (30, 685279), (35, 587382), (42, 489485), (70, 293691), (105, 195794), (210, 97897), (223, 92190), (439, 46830), (446, 46095), (669, 30730), (878, 23415), (1115, 18438), (1317, 15610), (1338, 15365), (1561, 13170), (2195, 9366), (2230, 9219), (2634, 7805), (3073, 6690), (3122, 6585), (3345, 6146), (4390, 4683)]