18960760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5209}}^1$

素因数の和:5240

約数の個数: 64

約数和(自身を含む): 52516800

約数和(自身を除く): 33556040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 5209, 10418, 20836, 26045, 36463, 41672, 52090, 67717, 72926, 104180, 135434, 145852, 182315, 208360, 270868, 291704, 338585, 364630, 474019, 541736, 677170, 729260, 948038, 1354340, 1458520, 1896076, 2370095, 2708680, 3792152, 4740190, 9480380, 18960760]

約数ペア:

[(1, 18960760), (2, 9480380), (4, 4740190), (5, 3792152), (7, 2708680), (8, 2370095), (10, 1896076), (13, 1458520), (14, 1354340), (20, 948038), (26, 729260), (28, 677170), (35, 541736), (40, 474019), (52, 364630), (56, 338585), (65, 291704), (70, 270868), (91, 208360), (104, 182315), (130, 145852), (140, 135434), (182, 104180), (260, 72926), (280, 67717), (364, 52090), (455, 41672), (520, 36463), (728, 26045), (910, 20836), (1820, 10418), (3640, 5209)]