28710890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 58834944

約数和(自身を除く): 30124054

約数列:

[1, 2, 5, 10, 13, 26, 37, 47, 65, 74, 94, 127, 130, 185, 235, 254, 370, 470, 481, 611, 635, 962, 1222, 1270, 1651, 1739, 2405, 3055, 3302, 3478, 4699, 4810, 5969, 6110, 8255, 8695, 9398, 11938, 16510, 17390, 22607, 23495, 29845, 45214, 46990, 59690, 61087, 77597, 113035, 122174, 155194, 220853, 226070, 305435, 387985, 441706, 610870, 775970, 1104265, 2208530, 2871089, 5742178, 14355445, 28710890]

約数ペア:

[(1, 28710890), (2, 14355445), (5, 5742178), (10, 2871089), (13, 2208530), (26, 1104265), (37, 775970), (47, 610870), (65, 441706), (74, 387985), (94, 305435), (127, 226070), (130, 220853), (185, 155194), (235, 122174), (254, 113035), (370, 77597), (470, 61087), (481, 59690), (611, 46990), (635, 45214), (962, 29845), (1222, 23495), (1270, 22607), (1651, 17390), (1739, 16510), (2405, 11938), (3055, 9398), (3302, 8695), (3478, 8255), (4699, 6110), (4810, 5969)]