399640920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{475763}}^1$

素因数の和:475784

約数の個数: 64

約数和(自身を含む): 1370200320

約数和(自身を除く): 970559400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 475763, 951526, 1427289, 1903052, 2378815, 2854578, 3330341, 3806104, 4757630, 5709156, 6660682, 7136445, 9515260, 9991023, 11418312, 13321364, 14272890, 16651705, 19030520, 19982046, 26642728, 28545780, 33303410, 39964092, 49955115, 57091560, 66606820, 79928184, 99910230, 133213640, 199820460, 399640920]

約数ペア:

[(1, 399640920), (2, 199820460), (3, 133213640), (4, 99910230), (5, 79928184), (6, 66606820), (7, 57091560), (8, 49955115), (10, 39964092), (12, 33303410), (14, 28545780), (15, 26642728), (20, 19982046), (21, 19030520), (24, 16651705), (28, 14272890), (30, 13321364), (35, 11418312), (40, 9991023), (42, 9515260), (56, 7136445), (60, 6660682), (70, 5709156), (84, 4757630), (105, 3806104), (120, 3330341), (140, 2854578), (168, 2378815), (210, 1903052), (280, 1427289), (420, 951526), (840, 475763)]