19880650

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1231}}^1$

素因数の和:1279

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 21366710

約数列:

[1, 2, 5, 10, 17, 19, 25, 34, 38, 50, 85, 95, 170, 190, 323, 425, 475, 646, 850, 950, 1231, 1615, 2462, 3230, 6155, 8075, 12310, 16150, 20927, 23389, 30775, 41854, 46778, 61550, 104635, 116945, 209270, 233890, 397613, 523175, 584725, 795226, 1046350, 1169450, 1988065, 3976130, 9940325, 19880650]

約数ペア:

[(1, 19880650), (2, 9940325), (5, 3976130), (10, 1988065), (17, 1169450), (19, 1046350), (25, 795226), (34, 584725), (38, 523175), (50, 397613), (85, 233890), (95, 209270), (170, 116945), (190, 104635), (323, 61550), (425, 46778), (475, 41854), (646, 30775), (850, 23389), (950, 20927), (1231, 16150), (1615, 12310), (2462, 8075), (3230, 6155)]