18320940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1$

素因数の和:532

約数の個数: 144

約数和(自身を含む): 63947520

約数和(自身を除く): 45626580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 30, 33, 36, 38, 44, 45, 55, 57, 60, 66, 76, 90, 95, 99, 110, 114, 132, 165, 171, 180, 190, 198, 209, 220, 228, 285, 330, 342, 380, 396, 418, 487, 495, 570, 627, 660, 684, 836, 855, 974, 990, 1045, 1140, 1254, 1461, 1710, 1881, 1948, 1980, 2090, 2435, 2508, 2922, 3135, 3420, 3762, 4180, 4383, 4870, 5357, 5844, 6270, 7305, 7524, 8766, 9253, 9405, 9740, 10714, 12540, 14610, 16071, 17532, 18506, 18810, 21428, 21915, 26785, 27759, 29220, 32142, 37012, 37620, 43830, 46265, 48213, 53570, 55518, 64284, 80355, 83277, 87660, 92530, 96426, 101783, 107140, 111036, 138795, 160710, 166554, 185060, 192852, 203566, 241065, 277590, 305349, 321420, 333108, 407132, 416385, 482130, 508915, 555180, 610698, 832770, 916047, 964260, 1017830, 1221396, 1526745, 1665540, 1832094, 2035660, 3053490, 3664188, 4580235, 6106980, 9160470, 18320940]

約数ペア:

[(1, 18320940), (2, 9160470), (3, 6106980), (4, 4580235), (5, 3664188), (6, 3053490), (9, 2035660), (10, 1832094), (11, 1665540), (12, 1526745), (15, 1221396), (18, 1017830), (19, 964260), (20, 916047), (22, 832770), (30, 610698), (33, 555180), (36, 508915), (38, 482130), (44, 416385), (45, 407132), (55, 333108), (57, 321420), (60, 305349), (66, 277590), (76, 241065), (90, 203566), (95, 192852), (99, 185060), (110, 166554), (114, 160710), (132, 138795), (165, 111036), (171, 107140), (180, 101783), (190, 96426), (198, 92530), (209, 87660), (220, 83277), (228, 80355), (285, 64284), (330, 55518), (342, 53570), (380, 48213), (396, 46265), (418, 43830), (487, 37620), (495, 37012), (570, 32142), (627, 29220), (660, 27759), (684, 26785), (836, 21915), (855, 21428), (974, 18810), (990, 18506), (1045, 17532), (1140, 16071), (1254, 14610), (1461, 12540), (1710, 10714), (1881, 9740), (1948, 9405), (1980, 9253), (2090, 8766), (2435, 7524), (2508, 7305), (2922, 6270), (3135, 5844), (3420, 5357), (3762, 4870), (4180, 4383)]