128459988

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1723}}^1$

素因数の和:1861

約数の個数: 72

約数和(自身を含む): 345144800

約数和(自身を除く): 216684812

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 109, 114, 171, 218, 228, 327, 342, 436, 654, 684, 981, 1308, 1723, 1962, 2071, 3446, 3924, 4142, 5169, 6213, 6892, 8284, 10338, 12426, 15507, 18639, 20676, 24852, 31014, 32737, 37278, 62028, 65474, 74556, 98211, 130948, 187807, 196422, 294633, 375614, 392844, 563421, 589266, 751228, 1126842, 1178532, 1690263, 2253684, 3380526, 3568333, 6761052, 7136666, 10704999, 14273332, 21409998, 32114997, 42819996, 64229994, 128459988]

約数ペア:

[(1, 128459988), (2, 64229994), (3, 42819996), (4, 32114997), (6, 21409998), (9, 14273332), (12, 10704999), (18, 7136666), (19, 6761052), (36, 3568333), (38, 3380526), (57, 2253684), (76, 1690263), (109, 1178532), (114, 1126842), (171, 751228), (218, 589266), (228, 563421), (327, 392844), (342, 375614), (436, 294633), (654, 196422), (684, 187807), (981, 130948), (1308, 98211), (1723, 74556), (1962, 65474), (2071, 62028), (3446, 37278), (3924, 32737), (4142, 31014), (5169, 24852), (6213, 20676), (6892, 18639), (8284, 15507), (10338, 12426)]