17940940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1523}}^1$

素因数の和:1582

約数の個数: 48

約数和(自身を含む): 40965120

約数和(自身を除く): 23024180

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 1523, 2356, 2945, 3046, 5890, 6092, 7615, 11780, 15230, 28937, 30460, 47213, 57874, 94426, 115748, 144685, 188852, 236065, 289370, 472130, 578740, 897047, 944260, 1794094, 3588188, 4485235, 8970470, 17940940]

約数ペア:

[(1, 17940940), (2, 8970470), (4, 4485235), (5, 3588188), (10, 1794094), (19, 944260), (20, 897047), (31, 578740), (38, 472130), (62, 289370), (76, 236065), (95, 188852), (124, 144685), (155, 115748), (190, 94426), (310, 57874), (380, 47213), (589, 30460), (620, 28937), (1178, 15230), (1523, 11780), (2356, 7615), (2945, 6092), (3046, 5890)]