28278650

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:168

約数の個数: 72

約数和(自身を含む): 59386080

約数和(自身を除く): 31107430

約数列:

[1, 2, 5, 10, 17, 19, 25, 34, 38, 50, 85, 95, 103, 170, 190, 206, 289, 323, 425, 475, 515, 578, 646, 850, 950, 1030, 1445, 1615, 1751, 1957, 2575, 2890, 3230, 3502, 3914, 5150, 5491, 7225, 8075, 8755, 9785, 10982, 14450, 16150, 17510, 19570, 27455, 29767, 33269, 43775, 48925, 54910, 59534, 66538, 87550, 97850, 137275, 148835, 166345, 274550, 297670, 332690, 565573, 744175, 831725, 1131146, 1488350, 1663450, 2827865, 5655730, 14139325, 28278650]

約数ペア:

[(1, 28278650), (2, 14139325), (5, 5655730), (10, 2827865), (17, 1663450), (19, 1488350), (25, 1131146), (34, 831725), (38, 744175), (50, 565573), (85, 332690), (95, 297670), (103, 274550), (170, 166345), (190, 148835), (206, 137275), (289, 97850), (323, 87550), (425, 66538), (475, 59534), (515, 54910), (578, 48925), (646, 43775), (850, 33269), (950, 29767), (1030, 27455), (1445, 19570), (1615, 17510), (1751, 16150), (1957, 14450), (2575, 10982), (2890, 9785), (3230, 8755), (3502, 8075), (3914, 7225), (5150, 5491)]