18688932

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 50450400

約数和(自身を除く): 31761468

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 89, 114, 171, 178, 228, 267, 307, 342, 356, 534, 614, 684, 801, 921, 1068, 1228, 1602, 1691, 1842, 2763, 3204, 3382, 3684, 5073, 5526, 5833, 6764, 10146, 11052, 11666, 15219, 17499, 20292, 23332, 27323, 30438, 34998, 52497, 54646, 60876, 69996, 81969, 104994, 109292, 163938, 209988, 245907, 327876, 491814, 519137, 983628, 1038274, 1557411, 2076548, 3114822, 4672233, 6229644, 9344466, 18688932]

約数ペア:

[(1, 18688932), (2, 9344466), (3, 6229644), (4, 4672233), (6, 3114822), (9, 2076548), (12, 1557411), (18, 1038274), (19, 983628), (36, 519137), (38, 491814), (57, 327876), (76, 245907), (89, 209988), (114, 163938), (171, 109292), (178, 104994), (228, 81969), (267, 69996), (307, 60876), (342, 54646), (356, 52497), (534, 34998), (614, 30438), (684, 27323), (801, 23332), (921, 20292), (1068, 17499), (1228, 15219), (1602, 11666), (1691, 11052), (1842, 10146), (2763, 6764), (3204, 5833), (3382, 5526), (3684, 5073)]