210742980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{501769}}^1$

素因数の和:501788

約数の個数: 48

約数和(自身を含む): 674378880

約数和(自身を除く): 463635900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 501769, 1003538, 1505307, 2007076, 2508845, 3010614, 3512383, 5017690, 6021228, 7024766, 7526535, 10035380, 10537149, 14049532, 15053070, 17561915, 21074298, 30106140, 35123830, 42148596, 52685745, 70247660, 105371490, 210742980]

約数ペア:

[(1, 210742980), (2, 105371490), (3, 70247660), (4, 52685745), (5, 42148596), (6, 35123830), (7, 30106140), (10, 21074298), (12, 17561915), (14, 15053070), (15, 14049532), (20, 10537149), (21, 10035380), (28, 7526535), (30, 7024766), (35, 6021228), (42, 5017690), (60, 3512383), (70, 3010614), (84, 2508845), (105, 2007076), (140, 1505307), (210, 1003538), (420, 501769)]