15917955

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:140

約数の個数: 64

約数和(自身を含む): 28892160

約数和(自身を除く): 12974205

約数列:

[1, 3, 5, 15, 23, 29, 37, 43, 69, 87, 111, 115, 129, 145, 185, 215, 345, 435, 555, 645, 667, 851, 989, 1073, 1247, 1591, 2001, 2553, 2967, 3219, 3335, 3741, 4255, 4773, 4945, 5365, 6235, 7955, 10005, 12765, 14835, 16095, 18705, 23865, 24679, 28681, 36593, 46139, 74037, 86043, 109779, 123395, 138417, 143405, 182965, 230695, 370185, 430215, 548895, 692085, 1061197, 3183591, 5305985, 15917955]

約数ペア:

[(1, 15917955), (3, 5305985), (5, 3183591), (15, 1061197), (23, 692085), (29, 548895), (37, 430215), (43, 370185), (69, 230695), (87, 182965), (111, 143405), (115, 138417), (129, 123395), (145, 109779), (185, 86043), (215, 74037), (345, 46139), (435, 36593), (555, 28681), (645, 24679), (667, 23865), (851, 18705), (989, 16095), (1073, 14835), (1247, 12765), (1591, 10005), (2001, 7955), (2553, 6235), (2967, 5365), (3219, 4945), (3335, 4773), (3741, 4255)]