18088004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 36288000

約数和(自身を除く): 18199996

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 89, 124, 149, 178, 298, 341, 356, 596, 682, 979, 1364, 1639, 1958, 2759, 3278, 3916, 4619, 5518, 6556, 9238, 11036, 13261, 18476, 26522, 30349, 50809, 53044, 60698, 101618, 121396, 145871, 203236, 291742, 411091, 583484, 822182, 1644364, 4522001, 9044002, 18088004]

約数ペア:

[(1, 18088004), (2, 9044002), (4, 4522001), (11, 1644364), (22, 822182), (31, 583484), (44, 411091), (62, 291742), (89, 203236), (124, 145871), (149, 121396), (178, 101618), (298, 60698), (341, 53044), (356, 50809), (596, 30349), (682, 26522), (979, 18476), (1364, 13261), (1639, 11036), (1958, 9238), (2759, 6556), (3278, 5518), (3916, 4619)]