1283200000

素因数分解:

$2^{10}\times 5^5\times {\mathrm{401}}^1$

素因数の和:446

約数の個数: 132

約数和(自身を含む): 3214223964

約数和(自身を除く): 1931023964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 401, 500, 512, 625, 640, 800, 802, 1000, 1024, 1250, 1280, 1600, 1604, 2000, 2005, 2500, 2560, 3125, 3200, 3208, 4000, 4010, 5000, 5120, 6250, 6400, 6416, 8000, 8020, 10000, 10025, 12500, 12800, 12832, 16000, 16040, 20000, 20050, 25000, 25600, 25664, 32000, 32080, 40000, 40100, 50000, 50125, 51328, 64000, 64160, 80000, 80200, 100000, 100250, 102656, 128000, 128320, 160000, 160400, 200000, 200500, 205312, 250625, 256640, 320000, 320800, 400000, 401000, 410624, 501250, 513280, 640000, 641600, 800000, 802000, 1002500, 1026560, 1253125, 1283200, 1600000, 1604000, 2005000, 2053120, 2506250, 2566400, 3200000, 3208000, 4010000, 5012500, 5132800, 6416000, 8020000, 10025000, 10265600, 12832000, 16040000, 20050000, 25664000, 32080000, 40100000, 51328000, 64160000, 80200000, 128320000, 160400000, 256640000, 320800000, 641600000, 1283200000]

約数ペア:

[(1, 1283200000), (2, 641600000), (4, 320800000), (5, 256640000), (8, 160400000), (10, 128320000), (16, 80200000), (20, 64160000), (25, 51328000), (32, 40100000), (40, 32080000), (50, 25664000), (64, 20050000), (80, 16040000), (100, 12832000), (125, 10265600), (128, 10025000), (160, 8020000), (200, 6416000), (250, 5132800), (256, 5012500), (320, 4010000), (400, 3208000), (401, 3200000), (500, 2566400), (512, 2506250), (625, 2053120), (640, 2005000), (800, 1604000), (802, 1600000), (1000, 1283200), (1024, 1253125), (1250, 1026560), (1280, 1002500), (1600, 802000), (1604, 800000), (2000, 641600), (2005, 640000), (2500, 513280), (2560, 501250), (3125, 410624), (3200, 401000), (3208, 400000), (4000, 320800), (4010, 320000), (5000, 256640), (5120, 250625), (6250, 205312), (6400, 200500), (6416, 200000), (8000, 160400), (8020, 160000), (10000, 128320), (10025, 128000), (12500, 102656), (12800, 100250), (12832, 100000), (16000, 80200), (16040, 80000), (20000, 64160), (20050, 64000), (25000, 51328), (25600, 50125), (25664, 50000), (32000, 40100), (32080, 40000)]