18937120

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1667}}^1$

素因数の和:1753

約数の個数: 48

約数和(自身を含む): 45396288

約数和(自身を除く): 26459168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 1667, 2272, 2840, 3334, 5680, 6668, 8335, 11360, 13336, 16670, 26672, 33340, 53344, 66680, 118357, 133360, 236714, 266720, 473428, 591785, 946856, 1183570, 1893712, 2367140, 3787424, 4734280, 9468560, 18937120]

約数ペア:

[(1, 18937120), (2, 9468560), (4, 4734280), (5, 3787424), (8, 2367140), (10, 1893712), (16, 1183570), (20, 946856), (32, 591785), (40, 473428), (71, 266720), (80, 236714), (142, 133360), (160, 118357), (284, 66680), (355, 53344), (568, 33340), (710, 26672), (1136, 16670), (1420, 13336), (1667, 11360), (2272, 8335), (2840, 6668), (3334, 5680)]