18840156

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 45511200

約数和(自身を除く): 26671044

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 123, 149, 164, 246, 257, 298, 447, 492, 514, 596, 771, 894, 1028, 1542, 1788, 3084, 6109, 10537, 12218, 18327, 21074, 24436, 31611, 36654, 38293, 42148, 63222, 73308, 76586, 114879, 126444, 153172, 229758, 459516, 1570013, 3140026, 4710039, 6280052, 9420078, 18840156]

約数ペア:

[(1, 18840156), (2, 9420078), (3, 6280052), (4, 4710039), (6, 3140026), (12, 1570013), (41, 459516), (82, 229758), (123, 153172), (149, 126444), (164, 114879), (246, 76586), (257, 73308), (298, 63222), (447, 42148), (492, 38293), (514, 36654), (596, 31611), (771, 24436), (894, 21074), (1028, 18327), (1542, 12218), (1788, 10537), (3084, 6109)]