81359964

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1237}}^1$

素因数の和:1289

約数の個数: 120

約数和(自身を含む): 251660640

約数和(自身を除く): 170300676

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 29, 36, 42, 54, 58, 63, 81, 84, 87, 108, 116, 126, 162, 174, 189, 203, 252, 261, 324, 348, 378, 406, 522, 567, 609, 756, 783, 812, 1044, 1134, 1218, 1237, 1566, 1827, 2268, 2349, 2436, 2474, 3132, 3654, 3711, 4698, 4948, 5481, 7308, 7422, 8659, 9396, 10962, 11133, 14844, 16443, 17318, 21924, 22266, 25977, 32886, 33399, 34636, 35873, 44532, 51954, 65772, 66798, 71746, 77931, 100197, 103908, 107619, 133596, 143492, 155862, 200394, 215238, 233793, 251111, 311724, 322857, 400788, 430476, 467586, 502222, 645714, 701379, 753333, 935172, 968571, 1004444, 1291428, 1402758, 1506666, 1937142, 2259999, 2805516, 2905713, 3013332, 3874284, 4519998, 5811426, 6779997, 9039996, 11622852, 13559994, 20339991, 27119988, 40679982, 81359964]

約数ペア:

[(1, 81359964), (2, 40679982), (3, 27119988), (4, 20339991), (6, 13559994), (7, 11622852), (9, 9039996), (12, 6779997), (14, 5811426), (18, 4519998), (21, 3874284), (27, 3013332), (28, 2905713), (29, 2805516), (36, 2259999), (42, 1937142), (54, 1506666), (58, 1402758), (63, 1291428), (81, 1004444), (84, 968571), (87, 935172), (108, 753333), (116, 701379), (126, 645714), (162, 502222), (174, 467586), (189, 430476), (203, 400788), (252, 322857), (261, 311724), (324, 251111), (348, 233793), (378, 215238), (406, 200394), (522, 155862), (567, 143492), (609, 133596), (756, 107619), (783, 103908), (812, 100197), (1044, 77931), (1134, 71746), (1218, 66798), (1237, 65772), (1566, 51954), (1827, 44532), (2268, 35873), (2349, 34636), (2436, 33399), (2474, 32886), (3132, 25977), (3654, 22266), (3711, 21924), (4698, 17318), (4948, 16443), (5481, 14844), (7308, 11133), (7422, 10962), (8659, 9396)]