1019900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:99

約数の個数: 72

約数和(自身を含む): 2666496

約数和(自身を除く): 1646596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 47, 50, 62, 70, 94, 100, 124, 140, 155, 175, 188, 217, 235, 310, 329, 350, 434, 470, 620, 658, 700, 775, 868, 940, 1085, 1175, 1316, 1457, 1550, 1645, 2170, 2350, 2914, 3100, 3290, 4340, 4700, 5425, 5828, 6580, 7285, 8225, 10199, 10850, 14570, 16450, 20398, 21700, 29140, 32900, 36425, 40796, 50995, 72850, 101990, 145700, 203980, 254975, 509950, 1019900]

約数ペア:

[(1, 1019900), (2, 509950), (4, 254975), (5, 203980), (7, 145700), (10, 101990), (14, 72850), (20, 50995), (25, 40796), (28, 36425), (31, 32900), (35, 29140), (47, 21700), (50, 20398), (62, 16450), (70, 14570), (94, 10850), (100, 10199), (124, 8225), (140, 7285), (155, 6580), (175, 5828), (188, 5425), (217, 4700), (235, 4340), (310, 3290), (329, 3100), (350, 2914), (434, 2350), (470, 2170), (620, 1645), (658, 1550), (700, 1457), (775, 1316), (868, 1175), (940, 1085)]