21529556720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{433}}^1\times {\mathrm{88789}}^1$

素因数の和:89242

約数の個数: 80

約数和(自身を含む): 57339871680

約数和(自身を除く): 35810314960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 433, 560, 866, 1732, 2165, 3031, 3464, 4330, 6062, 6928, 8660, 12124, 15155, 17320, 24248, 30310, 34640, 48496, 60620, 88789, 121240, 177578, 242480, 355156, 443945, 621523, 710312, 887890, 1243046, 1420624, 1775780, 2486092, 3107615, 3551560, 4972184, 6215230, 7103120, 9944368, 12430460, 24860920, 38445637, 49721840, 76891274, 153782548, 192228185, 269119459, 307565096, 384456370, 538238918, 615130192, 768912740, 1076477836, 1345597295, 1537825480, 2152955672, 2691194590, 3075650960, 4305911344, 5382389180, 10764778360, 21529556720]

約数ペア:

[(1, 21529556720), (2, 10764778360), (4, 5382389180), (5, 4305911344), (7, 3075650960), (8, 2691194590), (10, 2152955672), (14, 1537825480), (16, 1345597295), (20, 1076477836), (28, 768912740), (35, 615130192), (40, 538238918), (56, 384456370), (70, 307565096), (80, 269119459), (112, 192228185), (140, 153782548), (280, 76891274), (433, 49721840), (560, 38445637), (866, 24860920), (1732, 12430460), (2165, 9944368), (3031, 7103120), (3464, 6215230), (4330, 4972184), (6062, 3551560), (6928, 3107615), (8660, 2486092), (12124, 1775780), (15155, 1420624), (17320, 1243046), (24248, 887890), (30310, 710312), (34640, 621523), (48496, 443945), (60620, 355156), (88789, 242480), (121240, 177578)]