20440740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{461}}^1\times {\mathrm{739}}^1$

素因数の和:1212

約数の個数: 48

約数和(自身を含む): 57435840

約数和(自身を除く): 36995100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 461, 739, 922, 1383, 1478, 1844, 2217, 2305, 2766, 2956, 3695, 4434, 4610, 5532, 6915, 7390, 8868, 9220, 11085, 13830, 14780, 22170, 27660, 44340, 340679, 681358, 1022037, 1362716, 1703395, 2044074, 3406790, 4088148, 5110185, 6813580, 10220370, 20440740]

約数ペア:

[(1, 20440740), (2, 10220370), (3, 6813580), (4, 5110185), (5, 4088148), (6, 3406790), (10, 2044074), (12, 1703395), (15, 1362716), (20, 1022037), (30, 681358), (60, 340679), (461, 44340), (739, 27660), (922, 22170), (1383, 14780), (1478, 13830), (1844, 11085), (2217, 9220), (2305, 8868), (2766, 7390), (2956, 6915), (3695, 5532), (4434, 4610)]