231636740

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1\times {\mathrm{727}}^1$

素因数の和:1004

約数の個数: 48

約数和(自身を含む): 495331200

約数和(自身を除く): 263694460

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 179, 356, 358, 445, 716, 727, 890, 895, 1454, 1780, 1790, 2908, 3580, 3635, 7270, 14540, 15931, 31862, 63724, 64703, 79655, 129406, 130133, 159310, 258812, 260266, 318620, 323515, 520532, 647030, 650665, 1294060, 1301330, 2602660, 11581837, 23163674, 46327348, 57909185, 115818370, 231636740]

約数ペア:

[(1, 231636740), (2, 115818370), (4, 57909185), (5, 46327348), (10, 23163674), (20, 11581837), (89, 2602660), (178, 1301330), (179, 1294060), (356, 650665), (358, 647030), (445, 520532), (716, 323515), (727, 318620), (890, 260266), (895, 258812), (1454, 159310), (1780, 130133), (1790, 129406), (2908, 79655), (3580, 64703), (3635, 63724), (7270, 31862), (14540, 15931)]