64887660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18973}}^1$

素因数の和:19007

約数の個数: 72

約数和(自身を含む): 207196080

約数和(自身を除く): 142308420

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, 18973, 37946, 56919, 75892, 94865, 113838, 170757, 189730, 227676, 284595, 341514, 360487, 379460, 569190, 683028, 720974, 853785, 1081461, 1138380, 1441948, 1707570, 1802435, 2162922, 3244383, 3415140, 3604870, 4325844, 5407305, 6488766, 7209740, 10814610, 12977532, 16221915, 21629220, 32443830, 64887660]

約数ペア:

[(1, 64887660), (2, 32443830), (3, 21629220), (4, 16221915), (5, 12977532), (6, 10814610), (9, 7209740), (10, 6488766), (12, 5407305), (15, 4325844), (18, 3604870), (19, 3415140), (20, 3244383), (30, 2162922), (36, 1802435), (38, 1707570), (45, 1441948), (57, 1138380), (60, 1081461), (76, 853785), (90, 720974), (95, 683028), (114, 569190), (171, 379460), (180, 360487), (190, 341514), (228, 284595), (285, 227676), (342, 189730), (380, 170757), (570, 113838), (684, 94865), (855, 75892), (1140, 56919), (1710, 37946), (3420, 18973)]