220018400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{389}}^1$

素因数の和:517

約数の個数: 144

約数和(自身を含む): 621522720

約数和(自身を除く): 401504320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 100, 101, 112, 140, 160, 175, 200, 202, 224, 280, 350, 389, 400, 404, 505, 560, 700, 707, 778, 800, 808, 1010, 1120, 1400, 1414, 1556, 1616, 1945, 2020, 2525, 2723, 2800, 2828, 3112, 3232, 3535, 3890, 4040, 5050, 5446, 5600, 5656, 6224, 7070, 7780, 8080, 9725, 10100, 10892, 11312, 12448, 13615, 14140, 15560, 16160, 17675, 19450, 20200, 21784, 22624, 27230, 28280, 31120, 35350, 38900, 39289, 40400, 43568, 54460, 56560, 62240, 68075, 70700, 77800, 78578, 80800, 87136, 108920, 113120, 136150, 141400, 155600, 157156, 196445, 217840, 272300, 275023, 282800, 311200, 314312, 392890, 435680, 544600, 550046, 565600, 628624, 785780, 982225, 1089200, 1100092, 1257248, 1375115, 1571560, 1964450, 2178400, 2200184, 2750230, 3143120, 3928900, 4400368, 5500460, 6286240, 6875575, 7857800, 8800736, 11000920, 13751150, 15715600, 22001840, 27502300, 31431200, 44003680, 55004600, 110009200, 220018400]

約数ペア:

[(1, 220018400), (2, 110009200), (4, 55004600), (5, 44003680), (7, 31431200), (8, 27502300), (10, 22001840), (14, 15715600), (16, 13751150), (20, 11000920), (25, 8800736), (28, 7857800), (32, 6875575), (35, 6286240), (40, 5500460), (50, 4400368), (56, 3928900), (70, 3143120), (80, 2750230), (100, 2200184), (101, 2178400), (112, 1964450), (140, 1571560), (160, 1375115), (175, 1257248), (200, 1100092), (202, 1089200), (224, 982225), (280, 785780), (350, 628624), (389, 565600), (400, 550046), (404, 544600), (505, 435680), (560, 392890), (700, 314312), (707, 311200), (778, 282800), (800, 275023), (808, 272300), (1010, 217840), (1120, 196445), (1400, 157156), (1414, 155600), (1556, 141400), (1616, 136150), (1945, 113120), (2020, 108920), (2525, 87136), (2723, 80800), (2800, 78578), (2828, 77800), (3112, 70700), (3232, 68075), (3535, 62240), (3890, 56560), (4040, 54460), (5050, 43568), (5446, 40400), (5600, 39289), (5656, 38900), (6224, 35350), (7070, 31120), (7780, 28280), (8080, 27230), (9725, 22624), (10100, 21784), (10892, 20200), (11312, 19450), (12448, 17675), (13615, 16160), (14140, 15560)]