20167740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5897}}^1$

素因数の和:5931

約数の個数: 72

約数和(自身を含む): 64406160

約数和(自身を除く): 44238420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 5897, 11794, 17691, 23588, 29485, 35382, 53073, 58970, 70764, 88455, 106146, 112043, 117940, 176910, 212292, 224086, 265365, 336129, 353820, 448172, 530730, 560215, 672258, 1008387, 1061460, 1120430, 1344516, 1680645, 2016774, 2240860, 3361290, 4033548, 5041935, 6722580, 10083870, 20167740]

約数ペア:

[(1, 20167740), (2, 10083870), (3, 6722580), (4, 5041935), (5, 4033548), (6, 3361290), (9, 2240860), (10, 2016774), (12, 1680645), (15, 1344516), (18, 1120430), (19, 1061460), (20, 1008387), (30, 672258), (36, 560215), (38, 530730), (45, 448172), (57, 353820), (60, 336129), (76, 265365), (90, 224086), (95, 212292), (114, 176910), (171, 117940), (180, 112043), (190, 106146), (228, 88455), (285, 70764), (342, 58970), (380, 53073), (570, 35382), (684, 29485), (855, 23588), (1140, 17691), (1710, 11794), (3420, 5897)]