7180940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 16511040

約数和(自身を除く): 9330100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 389, 710, 778, 923, 1420, 1556, 1846, 1945, 3692, 3890, 4615, 5057, 7780, 9230, 10114, 18460, 20228, 25285, 27619, 50570, 55238, 101140, 110476, 138095, 276190, 359047, 552380, 718094, 1436188, 1795235, 3590470, 7180940]

約数ペア:

[(1, 7180940), (2, 3590470), (4, 1795235), (5, 1436188), (10, 718094), (13, 552380), (20, 359047), (26, 276190), (52, 138095), (65, 110476), (71, 101140), (130, 55238), (142, 50570), (260, 27619), (284, 25285), (355, 20228), (389, 18460), (710, 10114), (778, 9230), (923, 7780), (1420, 5057), (1556, 4615), (1846, 3890), (1945, 3692)]