21703600520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{870931}}^1$

素因数の和:871038

約数の個数: 64

約数和(自身を含む): 56436393600

約数和(自身を除く): 34732793080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 623, 712, 890, 1246, 1780, 2492, 3115, 3560, 4984, 6230, 12460, 24920, 870931, 1741862, 3483724, 4354655, 6096517, 6967448, 8709310, 12193034, 17418620, 24386068, 30482585, 34837240, 48772136, 60965170, 77512859, 121930340, 155025718, 243860680, 310051436, 387564295, 542590013, 620102872, 775128590, 1085180026, 1550257180, 2170360052, 2712950065, 3100514360, 4340720104, 5425900130, 10851800260, 21703600520]

約数ペア:

[(1, 21703600520), (2, 10851800260), (4, 5425900130), (5, 4340720104), (7, 3100514360), (8, 2712950065), (10, 2170360052), (14, 1550257180), (20, 1085180026), (28, 775128590), (35, 620102872), (40, 542590013), (56, 387564295), (70, 310051436), (89, 243860680), (140, 155025718), (178, 121930340), (280, 77512859), (356, 60965170), (445, 48772136), (623, 34837240), (712, 30482585), (890, 24386068), (1246, 17418620), (1780, 12193034), (2492, 8709310), (3115, 6967448), (3560, 6096517), (4984, 4354655), (6230, 3483724), (12460, 1741862), (24920, 870931)]