20560413320

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{44087}}^1$

素因数の和:44318

約数の個数: 64

約数和(自身を含む): 47138889600

約数和(自身を除く): 26578476280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 131, 178, 262, 356, 445, 524, 655, 712, 890, 1048, 1310, 1780, 2620, 3560, 5240, 11659, 23318, 44087, 46636, 58295, 88174, 93272, 116590, 176348, 220435, 233180, 352696, 440870, 466360, 881740, 1763480, 3923743, 5775397, 7847486, 11550794, 15694972, 19618715, 23101588, 28876985, 31389944, 39237430, 46203176, 57753970, 78474860, 115507940, 156949720, 231015880, 514010333, 1028020666, 2056041332, 2570051665, 4112082664, 5140103330, 10280206660, 20560413320]

約数ペア:

[(1, 20560413320), (2, 10280206660), (4, 5140103330), (5, 4112082664), (8, 2570051665), (10, 2056041332), (20, 1028020666), (40, 514010333), (89, 231015880), (131, 156949720), (178, 115507940), (262, 78474860), (356, 57753970), (445, 46203176), (524, 39237430), (655, 31389944), (712, 28876985), (890, 23101588), (1048, 19618715), (1310, 15694972), (1780, 11550794), (2620, 7847486), (3560, 5775397), (5240, 3923743), (11659, 1763480), (23318, 881740), (44087, 466360), (46636, 440870), (58295, 352696), (88174, 233180), (93272, 220435), (116590, 176348)]