645960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{769}}^1$

素因数の和:790

約数の個数: 64

約数和(自身を含む): 2217600

約数和(自身を除く): 1571640

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, 769, 840, 1538, 2307, 3076, 3845, 4614, 5383, 6152, 7690, 9228, 10766, 11535, 15380, 16149, 18456, 21532, 23070, 26915, 30760, 32298, 43064, 46140, 53830, 64596, 80745, 92280, 107660, 129192, 161490, 215320, 322980, 645960]

約数ペア:

[(1, 645960), (2, 322980), (3, 215320), (4, 161490), (5, 129192), (6, 107660), (7, 92280), (8, 80745), (10, 64596), (12, 53830), (14, 46140), (15, 43064), (20, 32298), (21, 30760), (24, 26915), (28, 23070), (30, 21532), (35, 18456), (40, 16149), (42, 15380), (56, 11535), (60, 10766), (70, 9228), (84, 7690), (105, 6152), (120, 5383), (140, 4614), (168, 3845), (210, 3076), (280, 2307), (420, 1538), (769, 840)]